{"title":"String Trimmer Cutting Head","description":null,"products":[{"product_id":"537185801-t35-trimmer-head-bump-knob-4pack","title":"537185801 Bump Knob - Fits Husqvarna T35 Trimmer Head (2003-05, 2005-01, 2007-04) - 4 Pack","description":"\u003ch2\u003e537185801 Bump Knob Replacement\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Impact Blue Polymer:\u003c\/strong\u003e Manufactured from a high-density, abrasion-resistant plastic specifically designed to withstand thousands of high-velocity \"bumps\" against asphalt, gravel, and packed soil.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReinforced Structural Ribbing:\u003c\/strong\u003e The internal geometry features reinforced walls to prevent the knob from cracking or shattering under the extreme centrifugal force of commercial-grade trimmers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Spring Seating:\u003c\/strong\u003e Engineered with a centered internal recess to perfectly secure the T35's heavy-duty spring, ensuring a consistent and responsive line-advancement \"snap\" every time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommercial-Grade Multi-Pack:\u003c\/strong\u003e This 4-piece kit provides a cost-effective solution for landscaping fleets and large residential properties, ensuring you always have a spare on hand to prevent downtime.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSnap-In Tool-Free Installation:\u003c\/strong\u003e Designed as a direct-fit replacement that clicks into the existing T35 housing by hand, allowing for rapid field repairs without the need for specialized tools.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e537185801\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eThis bump knob is the standard replacement for the professional \"T35\" series trimmer heads. Key compatible models include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHusqvarna 100\/200 Series:\u003c\/strong\u003e 123L, 123LD, 225L, 232L, 232R.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHusqvarna 300 Series:\u003c\/strong\u003e 322L, 323L, 324Lx, 325L, 325Lx, 326L, 326Lx, 327LS.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHusqvarna 500 Series:\u003c\/strong\u003e 522L, 525L, 525LS, 525LST, 535LS.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHistorical Production Dates:\u003c\/strong\u003e Compatible with T35 heads manufactured during the 2003-05, 2005-01, and 2007-04 production cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e Specifically for the T35 head. If you have the smaller T25 or larger T45, this knob will not fit correctly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorn-Through Bottom:\u003c\/strong\u003e The center of the blue knob has ground down from pavement contact to the point where the internal metal spring is visible or falling out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroken Retaining Tabs:\u003c\/strong\u003e The plastic clips that lock the knob into the housing have snapped, causing the knob to fly off while the trimmer is spinning at high RPM.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeized Mechanism:\u003c\/strong\u003e Significant buildup of dried sap, dirt, and debris has fused the knob to the internal spool, preventing it from releasing new line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRounded Indexing Teeth:\u003c\/strong\u003e The internal plastic \"teeth\" that click against the spool have rounded off, causing the head to dump all the line at once during use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisible Stress Fractures:\u003c\/strong\u003e White lines or cracks appearing in the blue plastic, indicating the material has become brittle and is prone to catastrophic failure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean the Housing:\u003c\/strong\u003e Before installing the new knob, use a stiff brush or screwdriver to remove all dried grass and mud from the locking slots and spring area to ensure a 100% secure lock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInspect the Spring:\u003c\/strong\u003e Ensure the internal metal spring is not rusted or collapsed. If the spring is weak, the new knob will stay \"compressed,\" causing the line to feed uncontrollably.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSnap-Lock Check:\u003c\/strong\u003e Press the new knob firmly into the housing until you hear a distinct \"click\" on both sides. Give the knob a firm tug by hand to verify it is fully seated before starting the engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManual Feed Test:\u003c\/strong\u003e With the engine off, press the knob in and pull the trimmer line manually to ensure the indexing mechanism is releasing the line smoothly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvoid \"Riding\" the Head:\u003c\/strong\u003e To maximize the life of your new knobs, try to avoid letting the trimmer head drag on the ground while trimming; only make contact with the surface when you need to advance the line.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":45213787652285,"sku":"AZ00102896","price":15.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00168815_1_308c4fb3-dde2-45ff-b79e-4f9d27f36fb1.jpg?v=1762247019"},{"product_id":"trimmer-head-spool-cap-cover-6pack","title":"40027133017 Trimmer Head Spool Cap Cover - Fits Stihl Autocut 25-2 (FS90R, FS44, FS56, FS90 - 6 Pack","description":"\u003ch2\u003e40027133017 Trimmer Head Spool Cap Cover\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Durability Impact Polymer:\u003c\/strong\u003e Manufactured from specialized, glass-reinforced nylon designed to withstand high-velocity contact with rocks, curbs, and hard soil without cracking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Tab Locking System:\u003c\/strong\u003e Features a precision-molded snap-fit design that ensures the cap remains securely locked to the trimmer head even under high centrifugal force and heavy vibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Ground-Slide Surface:\u003c\/strong\u003e The bottom profile is engineered for smooth \"bumping\" on the ground to advance line, reducing friction and extending the life of the internal spool components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Spring Support:\u003c\/strong\u003e Designed with a centered recess to perfectly seat the AutoCut 25-2 internal spring, ensuring consistent tension and a reliable \"snap-back\" during line advancement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat-Resistant Engineering:\u003c\/strong\u003e Formulated to resist warping and melting caused by the friction heat generated during intensive, commercial-grade trimming and edging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eStilh:\u003c\/strong\u003e 40027133017\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStens:\u003c\/strong\u003e 385-563, 385-861\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eThis spool cap is the standard replacement for the Stihl AutoCut 25-2 trimmer head, which is found on a wide variety of professional and residential trimmers. Key compatible models include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStihl FS Series (Small\/Medium):\u003c\/strong\u003e FS 44, FS 55, FS 55R, FS 55RC, FS 56, FS 56C, FS 70, FS 70R.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStihl FS Series (Professional):\u003c\/strong\u003e FS 80, FS 83, FS 85, FS 87, FS 90, FS 90R, FS 94, FS 100RX, FS 110, FS 110R, FS 120, FS 130, FS 130R, FS 240, FS 240R.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStihl KM Series (Kombi):\u003c\/strong\u003e KM 55, KM 56, KM 85, KM 90, KM 110, KM 130 with trimmer attachments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e Specifically for the AutoCut 25-2 head. If your trimmer is equipped with the FixCut or PolyCut head, this cap will not be compatible.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorn-Through Bottom:\u003c\/strong\u003e The center of the cap has ground down from contact with pavement to the point where the internal spring is visible or the cap has become paper-thin.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroken Locking Tabs:\u003c\/strong\u003e One or both of the side \"snap\" tabs have cracked or snapped off, which can cause the cap and spool to fly off during operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisible Stress Fractures:\u003c\/strong\u003e Small white lines or cracks appearing in the black plastic, indicating the material has become brittle and is prone to failure at high RPMs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoose Fitment:\u003c\/strong\u003e The cap no longer \"clicks\" firmly into the head housing, causing the internal spool to vibrate or the line to advance uncontrollably.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMelting or Heat Damage:\u003c\/strong\u003e Significant warping of the plastic due to friction heat from the trimmer head or repeated contact with hot asphalt.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear the Debris:\u003c\/strong\u003e Before snapping on the new cap, use a stiff brush or screwdriver to remove dried grass, mud, and debris from the locking slots on the trimmer head housing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck the Spring:\u003c\/strong\u003e Ensure the internal metal spring is seated flat and is not rusted or collapsed. A weak spring will cause the head to dump all the line at once.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTab Alignment:\u003c\/strong\u003e Align the two tabs of the cap with the corresponding notches on the trimmer head. Press down firmly on both sides simultaneously until you hear a distinct \"click.\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Manual Pull Test:\u003c\/strong\u003e After installation, give the cap a firm tug by hand to ensure both tabs are fully locked. A loose cap can become a high-velocity projectile at full throttle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvoid Riding the Ground:\u003c\/strong\u003e To prolong the life of your new cap, try to keep the trimmer head slightly elevated. Only make contact with the ground when you need to \"bump\" for more line.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":45371209679037,"sku":"AZ00276061","price":19.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00276061_1_6d8b6ad1-cbdf-4792-93d9-01f8a7223b14.jpg?v=1762246297"},{"product_id":"537338701-trimmer-head-bump-knob-4pack","title":"537338701 Trimmer Head Bump Knob - Fits Husqvarna T25 Heads (124L, 125L, 125LDx - 4 Pack","description":"\u003ch2\u003e537338701 Trimmer Head Bump Knob\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Density Wear Polymer:\u003c\/strong\u003e Engineered from specialized, abrasion-resistant plastic to withstand the high-velocity friction of tapping against concrete, asphalt, and rocky soil.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Spring-Loaded Interface:\u003c\/strong\u003e Designed with precision-molded internal slots to securely house the trimmer head spring, ensuring a consistent and responsive \"snap-back\" after every tap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced Impact Surface:\u003c\/strong\u003e Features a reinforced, flat-bottom design that ensures even wear and prevents the trimmer head from wobbling at high RPMs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Visibility Blue:\u003c\/strong\u003e The signature factory-match color allows for easy inspection of wear levels and ensures the knob is easy to locate during field maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool-Free Installation:\u003c\/strong\u003e A direct-fit replacement that snaps into the existing T25 housing by hand, allowing for rapid repairs without the need for additional tools.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e537338701\u003c\/li\u003e\n\u003cli\u003e537 33 87-01\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e966674401 (Associated Head)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eThis bump knob is the standard replacement part for the Husqvarna T25 (Tap Advance) series trimmer heads. Key compatible models include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHusqvarna 120 Series:\u003c\/strong\u003e 124L, 125L, 125LDx, 128L, 128LD, 128LDx, 128R, 128RJ.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHusqvarna 200 Series:\u003c\/strong\u003e 223L, 223R, 26LC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHusqvarna 300 Series:\u003c\/strong\u003e 32LC, 322L, 323L, 325L.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e This part is specifically for the \u003cstrong\u003eT25\u003c\/strong\u003e head. If you have the larger T35 or T45 head, you will require a different part number.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround-Through Surface:\u003c\/strong\u003e The bottom of the blue knob has worn down so thin that the internal spring is visible or has already fallen out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroken Retaining Tabs:\u003c\/strong\u003e The plastic clips that hold the knob inside the trimmer head housing have snapped, causing the knob to fly off during operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeized Mechanism:\u003c\/strong\u003e Dirt and dried sap have fused the knob to the internal spool, preventing it from being \"tapped\" to release new line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRounded Edges:\u003c\/strong\u003e Significant wear has rounded the edges of the knob to the point where it no longer triggers the internal indexing mechanism reliably.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCracked Housing:\u003c\/strong\u003e Visible stress fractures in the blue plastic which can cause the knob to shatter at high RPMs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean the Housing:\u003c\/strong\u003e Before installing the new knob, use a stiff brush to remove all dried grass, mud, and debris from inside the trimmer head and around the spring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck the Spring:\u003c\/strong\u003e Inspect the internal metal spring for rust or loss of tension. If the spring is weak, the new knob will not retract properly, causing the head to dump all the line at once.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTab Alignment:\u003c\/strong\u003e Align the retaining tabs of the new knob with the slots in the T25 housing. Press down firmly until you hear a distinct \"click\" on both sides.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManual Feed Test:\u003c\/strong\u003e Once installed, press the knob in by hand and pull the line to ensure the internal spool is releasing the line correctly before starting the engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvoid Dragging:\u003c\/strong\u003e To prolong the life of your new knob, avoid letting the trimmer head \"ride\" on the ground while trimming; only make contact with the surface when you need to advance the line.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":45371209744573,"sku":"AZ00484947","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00484947_1_d0b1cff7-929c-4cab-ab8f-892e5063feac.jpg?v=1762246296"},{"product_id":"537338701-trimmer-head-bump-knob","title":"537338701 Trimmer Head Bump Knob - Fits Husqvarna T25 Heads (124L, 125L, 125LDx - 2 Pack","description":"\u003ch2\u003e537338701 Trimmer Head Bump Knob\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Density Wear Polymer:\u003c\/strong\u003e Engineered from specialized, abrasion-resistant plastic to withstand the high-velocity friction of tapping against concrete, asphalt, and rocky soil.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Spring-Loaded Interface:\u003c\/strong\u003e Designed with precision-molded internal slots to securely house the trimmer head spring, ensuring a consistent and responsive \"snap-back\" after every tap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalanced Impact Surface:\u003c\/strong\u003e Features a reinforced, flat-bottom design that ensures even wear and prevents the trimmer head from wobbling at high RPMs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Visibility Blue:\u003c\/strong\u003e The signature factory-match color allows for easy inspection of wear levels and ensures the knob is easy to locate during field maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool-Free Installation:\u003c\/strong\u003e A direct-fit replacement that snaps into the existing T25 housing by hand, allowing for rapid repairs without the need for additional tools.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e537338701\u003c\/li\u003e\n\u003cli\u003e537 33 87-01\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e966674401 (Associated Head)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eThis bump knob is the standard replacement part for the Husqvarna T25 (Tap Advance) series trimmer heads. Key compatible models include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHusqvarna 120 Series:\u003c\/strong\u003e 124L, 125L, 125LDx, 128L, 128LD, 128LDx, 128R, 128RJ.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHusqvarna 200 Series:\u003c\/strong\u003e 223L, 223R, 26LC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHusqvarna 300 Series:\u003c\/strong\u003e 32LC, 322L, 323L, 325L.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e This part is specifically for the \u003cstrong\u003eT25\u003c\/strong\u003e head. If you have the larger T35 or T45 head, you will require a different part number.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround-Through Surface:\u003c\/strong\u003e The bottom of the blue knob has worn down so thin that the internal spring is visible or has already fallen out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroken Retaining Tabs:\u003c\/strong\u003e The plastic clips that hold the knob inside the trimmer head housing have snapped, causing the knob to fly off during operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeized Mechanism:\u003c\/strong\u003e Dirt and dried sap have fused the knob to the internal spool, preventing it from being \"tapped\" to release new line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRounded Edges:\u003c\/strong\u003e Significant wear has rounded the edges of the knob to the point where it no longer triggers the internal indexing mechanism reliably.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCracked Housing:\u003c\/strong\u003e Visible stress fractures in the blue plastic which can cause the knob to shatter at high RPMs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean the Housing:\u003c\/strong\u003e Before installing the new knob, use a stiff brush to remove all dried grass, mud, and debris from inside the trimmer head and around the spring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck the Spring:\u003c\/strong\u003e Inspect the internal metal spring for rust or loss of tension. If the spring is weak, the new knob will not retract properly, causing the head to dump all the line at once.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTab Alignment:\u003c\/strong\u003e Align the retaining tabs of the new knob with the slots in the T25 housing. Press down firmly until you hear a distinct \"click\" on both sides.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManual Feed Test:\u003c\/strong\u003e Once installed, press the knob in by hand and pull the line to ensure the internal spool is releasing the line correctly before starting the engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvoid Dragging:\u003c\/strong\u003e To prolong the life of your new knob, avoid letting the trimmer head \"ride\" on the ground while trimming; only make contact with the surface when you need to advance the line.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":45371209777341,"sku":"AZ00113996","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00113996_1_ad0e0e3b-7315-4bf3-aee3-f6a1ce56bdad.jpg?v=1762246295"},{"product_id":"21560070-trimmer-head-for-echo-echomatic","title":"21560070 SRM Echomatic Trimmer Head - Fits Echo SRM-210 SRM-225 SRM-230 SRM-235 - Replaces 21560050 200095200","description":"\u003ch2\u003e21560070 SRM Echomatic Trimmer Head\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Semi-Automatic Feed:\u003c\/strong\u003e The classic Echomatic \"bump\" system provides instant line advancement with a simple tap on the ground, ensuring you never have to stop mid-job to manually pull line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Impact Structural Polymer:\u003c\/strong\u003e Manufactured from a specialized glass-reinforced nylon composite to resist cracking and shattering during high-velocity impacts with curbs and fence posts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Dual-Line Performance:\u003c\/strong\u003e Features an internal spool design that feeds two lines simultaneously, providing a balanced, level cut that is ideal for both manicured lawns and heavy weed clearing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-Wound with 0.095\" Line:\u003c\/strong\u003e Comes factory-loaded with professional-grade 0.095-inch diameter line, offering the perfect balance of cutting power and durability for standard garden maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentrifugal Balance Engineering:\u003c\/strong\u003e Designed to minimize motor vibration and shaft wobble, which reduces operator hand fatigue and prevents premature wear on the trimmer's gear head bearings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e21560070\u003c\/li\u003e\n\u003cli\u003e21560050\u003c\/li\u003e\n\u003cli\u003e200095200\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eThis Echomatic head is the traditional standard replacement for Echo’s straight-shaft SRM trimmer series. Key compatible models include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEcho SRM Entry Series:\u003c\/strong\u003e SRM-210, SRM-225, SRM-225i, SRM-2100, SRM-2110.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEcho Professional Series:\u003c\/strong\u003e SRM-230, SRM-231, SRM-235, SRM-250, SRM-265, SRM-266.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEcho PAS Attachments:\u003c\/strong\u003e Compatible with most straight-shaft Pro Attachment Series trimmer heads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTechnical Fitment:\u003c\/strong\u003e Designed for models utilizing the \u003cstrong\u003eM10 x 1.25 LHF\u003c\/strong\u003e (Left Hand Female) arbor thread.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorn-Through Bump Surface:\u003c\/strong\u003e The bottom of the head has ground down from pavement contact to the point where the internal spool is exposed or the line no longer advances correctly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCracked Outer Shell:\u003c\/strong\u003e Visible stress fractures or missing chunks of the black housing, which can cause the head to become dangerously unbalanced at high RPMs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Spool Jamming:\u003c\/strong\u003e The plastic \"locking teeth\" inside the head have rounded off, causing the head to dump all the line at once during use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyelet Failure:\u003c\/strong\u003e The metal line exits (eyelets) have fallen out or are deeply grooved, causing the trimmer line to snap off inside the head repeatedly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcessive Vibration:\u003c\/strong\u003e The head has become structurally unsound or unevenly worn, putting undue stress on the gear head and drive shaft.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeft-Hand Threads:\u003c\/strong\u003e Remember, this head is \u003cstrong\u003eLeft-Hand Threaded\u003c\/strong\u003e. To tighten it onto the trimmer, you must turn the head \u003cstrong\u003eCounter-Clockwise\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLock the Gear Head:\u003c\/strong\u003e Insert a small hex key or the factory locking pin into the gear head hole to hold the shaft stationary while you spin the old head off and the new one on.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpool Direction:\u003c\/strong\u003e When reloading line, follow the arrows molded into the internal spool. Winding the line in the wrong direction will prevent the semi-automatic feed from working.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoak Your Line:\u003c\/strong\u003e To extend the life of your trimmer line, soak the spool in water for 24 hours before use. This keeps the nylon flexible and resistant to snapping at the eyelet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean the Internal Spring:\u003c\/strong\u003e Every time you reload the line, shake out any dirt or dried grass trapped around the internal spring to ensure the \"tap\" action stays smooth and responsive.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":45371210006717,"sku":"AZ00546012","price":14.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00546012_1_0c9ea382-90a5-4301-aa17-ec8e1926340a.jpg?v=1762246292"},{"product_id":"252-trimmer-head-4002-710-2191-2pack","title":"25-2 Trimmer Head 4002 710 2191 - Fits Stihl FS55 FS56 FS70 FS80 - 2 Pack","description":"\u003ch2\u003e25-2 AutoCut Trimmer Head 4002-710-2191\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSemi-automatic, bump-feed line advance system.\u003c\/li\u003e\n\u003cli\u003eConstructed from high-impact plastic for durability.\u003c\/li\u003e\n\u003cli\u003eDesigned for simplified line reloading without head disassembly.\u003c\/li\u003e\n\u003cli\u003eArbor Size: 10mm x 1.0 Left Hand Female (LHF).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTIHL:\u003c\/strong\u003e 4002-710-2191, 4002-710-2108, 4002-710-2168, 4002-713-9608\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOregon \/ Stens \/ Rotary:\u003c\/strong\u003e 55-993, 385-861, 385-862, 25-2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eFits specific Stihl string trimmer models including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFS 44, FS 55, FS 55 R, FS 56, FS 56 R, FS 56 CE, FS 56 RC, FS 56 RCE\u003c\/li\u003e\n\u003cli\u003eFS 70, FS 70 R\u003c\/li\u003e\n\u003cli\u003eFS 80, FS 85\u003c\/li\u003e\n\u003cli\u003eFS 90, FS 90 R, FS 91 R, FS 94 R\u003c\/li\u003e\n\u003cli\u003eFS 100 RX, FS 110, FS 111 RX, FS 120, FS 130, FS 131\u003c\/li\u003e\n\u003cli\u003eFS 250\u003c\/li\u003e\n\u003cli\u003eFR 108\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVisible cracks, chips, or significant wear on the head housing.\u003c\/li\u003e\n\u003cli\u003eFailure of the bump-feed mechanism to advance line.\u003c\/li\u003e\n\u003cli\u003eWorn-out line eyelets causing premature line breakage.\u003c\/li\u003e\n\u003cli\u003eExcessive vibration during operation that is not related to the engine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDisconnect the spark plug wire before performing any maintenance.\u003c\/li\u003e\n\u003cli\u003eInsert a locking pin or small screwdriver into the designated hole on the gear head to prevent the shaft from turning.\u003c\/li\u003e\n\u003cli\u003eUnscrew the old trimmer head by turning it clockwise.\u003c\/li\u003e\n\u003cli\u003eScrew the new trimmer head on counter-clockwise until it is hand-tight.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":45371210465469,"sku":"AZ17761169","price":21.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00137812_1.jpg?v=1764141086"},{"product_id":"4pack-wa6531-gt-trimmer-spool-cap-covers","title":"WA6531 GT Trimmer Spool Cap Covers - Fits Worx WA0010, WG155, WG180 - Replaces 50006531 - 4 Pack","description":"\u003ch2\u003eWA6531 Spool Cap Covers for Worx GT Series Trimmers\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Impact ABS Construction:\u003c\/strong\u003e Manufactured from durable, UV-resistant ABS plastic to withstand high-velocity contact with rocks, curbs, and hard surfaces during edging and trimming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Tab Locking System:\u003c\/strong\u003e Features a precision-molded snap-on design that ensures the cap remains securely locked to the trimmer head even under high centrifugal force and heavy vibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Line Protection:\u003c\/strong\u003e Designed to protect the WA0010 trimmer line and spool from dirt, debris, and ground friction, extending the life of your line and internal spool components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool-Free Installation:\u003c\/strong\u003e Engineered as a direct-fit replacement that snaps into place by hand, allowing for quick line changes and maintenance without the need for additional tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Visibility Orange:\u003c\/strong\u003e The bright factory-match color ensures the cap is easy to locate if accidentally dropped in tall grass or brush during a line refill.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWORX:\u003c\/strong\u003e WA6531, 50006531\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eThis spool cap cover is specifically designed for the Worx GT and GT Revolution series of cordless and electric trimmers. Key compatible models include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorx GT Series:\u003c\/strong\u003e WG150, WG151, WG151.5, WG152, WG153, WG154, WG155, WG155.5, WG156, WG157.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorx GT Revolution \u0026amp; Nitro:\u003c\/strong\u003e WG160, WG160.1, WG160.2, WG160.3, WG160.4, WG163, WG165, WG170, WG175, WG180.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorx Electric:\u003c\/strong\u003e WG167, WG176.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e Specifically designed to secure the Worx WA0010 (single-line) spool system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorn-Through Center:\u003c\/strong\u003e The bottom of the cap has ground down from contact with pavement or soil, potentially exposing the trimmer spool and line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroken Locking Tabs:\u003c\/strong\u003e One or both of the side \"snap\" tabs have cracked or snapped off, causing the cap to fly off while the trimmer is spinning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisible Stress Fractures:\u003c\/strong\u003e Small white lines or cracks appearing in the orange plastic, indicating the material has become brittle and is prone to failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoose Fitment:\u003c\/strong\u003e The cap no longer \"clicks\" firmly into place, which can cause the internal spool to vibrate or jump out during use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMelting or Heat Damage:\u003c\/strong\u003e Significant warping of the plastic due to friction heat from the trimmer head or line.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean the Trimmer Head:\u003c\/strong\u003e Before snapping on the new WA6531 cap, use a stiff brush to remove dried grass, mud, and debris from the locking slots on the trimmer head. This ensures a 100% secure lock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTab Alignment:\u003c\/strong\u003e Align the two plastic tabs on the cap with the corresponding notches on the trimmer hub. Press down firmly on both sides until you hear a distinct \"click\" from each tab.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Pull Test:\u003c\/strong\u003e After installation, give the cap a firm tug by hand to ensure it is locked. A loose cap can become a high-velocity projectile if it detaches at full RPM.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck the Spool:\u003c\/strong\u003e Ensure the WA0010 spool is seated flat and the line is correctly threaded through the metal eyelet before snapping the cap on. If the spool is crooked, the cap will not lock properly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvoid \"Bottoming Out\":\u003c\/strong\u003e To prolong the life of your new cap, try to avoid letting the trimmer head drag directly on concrete or stone while edging; keep the head slightly elevated to reduce friction wear.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":45371211710653,"sku":"AZ00172646","price":10.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00172646_1_6b272b2f-c14b-424b-b440-7d2ef4717fa3.jpg?v=1765276015"},{"product_id":"2pack-t35-tap-advance-trimmer-head-537388101","title":"537388101 T35 Trimmer Head - Fits Husqvarna 123L 225L 232L 322L - Replaces 531300183 - 2 Pack","description":"\u003ch2\u003e537388101 T35 Trimmer Head\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Tap Advance Mechanism:\u003c\/strong\u003e Specifically engineered for commercial-grade durability, the T35 head allows for instant line advancement with a simple tap on the ground during operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSplit-Spool Internal Design:\u003c\/strong\u003e Features an integrated divider that keeps the two lines separate, preventing \"overlapping\" and line welding that can cause the head to jam.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Impact Blue Bump Knob:\u003c\/strong\u003e The characteristic blue knob is manufactured from high-density, wear-resistant polymer to withstand thousands of impacts with asphalt and soil.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy-Reload Interface:\u003c\/strong\u003e Designed with an open-eyelet system that allows for rapid line threading and winding without the need to turn the head upside down or use specialized tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrewound with .095\" Line:\u003c\/strong\u003e Comes factory-loaded with premium 0.095-inch diameter titanium-style line, providing an aggressive cut for heavy weeds and thick grass right out of the box.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e537388101\u003c\/li\u003e\n\u003cli\u003e531300183\u003c\/li\u003e\n\u003cli\u003e531300194\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eThis \"T35\" series head is the standard professional choice for Husqvarna's straight-shaft trimmers. Key compatible models include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHusqvarna 100\/200 Series:\u003c\/strong\u003e 123L, 123LD, 225L, 232L, 232R.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHusqvarna 300 Series:\u003c\/strong\u003e 322L, 323L, 324Lx, 325L, 325Lx, 326L, 326Lx, 327LS.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHusqvarna 500 Series:\u003c\/strong\u003e 522L, 525L, 525LS, 525LST, 535LS.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTechnical Specification:\u003c\/strong\u003e Fits all models with an \u003cstrong\u003eM10 x 1.25 LHF\u003c\/strong\u003e (Left Hand Female) arbor thread.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorn-Through Bump Cap:\u003c\/strong\u003e The blue center knob has ground down to the point where the internal spring is visible or it no longer triggers the line release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCracked Outer Shell:\u003c\/strong\u003e Visible stress fractures in the black housing, which can lead to the head shattering at high RPMs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyelet Failure:\u003c\/strong\u003e The metal line exits (eyelets) have fallen out or are deeply grooved, causing the trimmer line to snap off inside the head repeatedly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Spool Jamming:\u003c\/strong\u003e The plastic \"teeth\" inside the head that lock the spool have rounded off, causing the head to dump all the line at once during use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcessive Vibration:\u003c\/strong\u003e The head has become unbalanced due to uneven wear, putting unnecessary stress on the trimmer's gear head and drive shaft.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeft-Hand Threads:\u003c\/strong\u003e Remember, this head is \u003cstrong\u003eLeft-Hand Threaded\u003c\/strong\u003e. To tighten it onto the trimmer, you must turn it \u003cstrong\u003eCounter-Clockwise\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLock the Gear Head:\u003c\/strong\u003e Use a small hex key or the factory locking pin to hold the gear head shaft stationary while you spin the old head off and the new one on.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpool Direction:\u003c\/strong\u003e When reloading line, follow the \"LH\" arrows molded into the spool. Loading the line in the \"RH\" direction will prevent the bump-feed mechanism from working.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoak Your Line:\u003c\/strong\u003e To extend the life of your trimmer line, soak the spool in water for 24 hours. This keeps the nylon hydrated, making it more flexible and resistant to snapping at the eyelet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean the Spring:\u003c\/strong\u003e Every time you reload the line, shake out any dirt or grass trapped around the internal spring to ensure the \"bump\" action stays smooth and responsive.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":45844234436797,"sku":"AZ00232610","price":40.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00255597_1_622d23d3-b443-4944-a5db-0faaa170aa23.jpg?v=1762245760"},{"product_id":"c52-feed-trimmer-head-1","title":"C5-2 Feed Trimmer Head - Fits Stihl FS38, FS40, FS45, FS46 - Replaces 4006-710-2106, 4006-710-2103","description":"\u003ch2\u003eAutoCut C5-2 Trimmer Head for Stihl Curved Shaft Trimmers\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutoCut \"C\" Series Easy-Loading:\u003c\/strong\u003e Features a specialized internal spool that allows for reloading trimmer line without disassembling the head; simply insert the line and twist the knob to wind.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Line Bump Feed:\u003c\/strong\u003e Engineered for reliable line advancement with a single tap on the ground during full-throttle operation, maintaining a consistent cutting swath.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Impact Polymer Construction:\u003c\/strong\u003e Manufactured from glass-reinforced nylon to withstand high-velocity contact with rocks, curbs, and fence posts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Aerodynamic Design:\u003c\/strong\u003e Designed to reduce air resistance and engine drag, allowing small-displacement trimmers to maintain higher RPMs for cleaner cuts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision-Balanced Spool:\u003c\/strong\u003e Reduced vibration during high-speed rotation, which protects the trimmer's flexible drive shaft and reduces operator hand fatigue.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e4006 710 2106\u003c\/li\u003e\n\u003cli\u003e4006 710 2103\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAutoCut C5-2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eThis trimmer head is specifically designed for Stihl's lightweight \u003cstrong\u003ecurved-shaft\u003c\/strong\u003e trimmers and electric models. Key compatible models include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStihl Gas Trimmers:\u003c\/strong\u003e FS 38, FS 40, FS 45, FS 45 C, FS 46, FS 50, FS 50 C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStihl Electric Trimmers:\u003c\/strong\u003e FSE 60, FSE 71, FSE 81.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStihl KombiSystems:\u003c\/strong\u003e FS-KM (Curved shaft attachment).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e Not compatible with straight-shaft Stihl trimmers (FS 55, FS 56, etc.) which typically utilize the larger C26-2 head with different arbor threads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorn-Through Bump Cap:\u003c\/strong\u003e The bottom of the head is ground down to the point where the internal spring is visible or the line release no longer functions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCracked Housing:\u003c\/strong\u003e Visible stress fractures in the black outer shell, which can lead to the head shattering at high RPM.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLine Won't Load:\u003c\/strong\u003e The internal \"eyelets\" no longer line up or the winding mechanism is jammed with dried sap and debris.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyelet Failure:\u003c\/strong\u003e The metal line exits have fallen out or are deeply grooved, causing the trimmer line to snap off inside the head repeatedly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcessive Vibration:\u003c\/strong\u003e The head has become unbalanced due to uneven wear, putting unnecessary stress on the trimmer's motor and drive cable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeft-Hand Threads:\u003c\/strong\u003e Remember, this head is \u003cstrong\u003eLeft-Hand Threaded\u003c\/strong\u003e. To tighten it onto the trimmer, you must turn it \u003cstrong\u003eCounter-Clockwise\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy-Load Alignment:\u003c\/strong\u003e To reload, rotate the top knob until the arrows on the knob align with the metal eyelets. Push about 10–13 feet of 0.080\" line through until it is even on both sides, then twist the knob to wind it in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLine Diameter:\u003c\/strong\u003e For best results on FS 38\/45 models, use \u003cstrong\u003e0.080\" (2.0mm)\u003c\/strong\u003e line. While 0.095\" may fit, it can cause the small engine to bog down and overheat the clutch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean the Head:\u003c\/strong\u003e Every time you reload the line, tap out any accumulated grass and dirt from inside the head to ensure the \"bump\" action stays smooth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Cable Care:\u003c\/strong\u003e While the head is removed, check the end of your drive cable. If it looks dry, apply a small amount of \u003cstrong\u003eStihl Multilub\u003c\/strong\u003e to prevent the cable from snapping inside the shaft.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":45860029726909,"sku":"AZ00814074","price":15.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00228522_1_c85cbecb-6bc0-4e92-be35-888363d60914.jpg?v=1762245599"},{"product_id":"99944200903-speedfeed-450-trimmer-head-1","title":"Echo Trimmer Head 99944200903 - for SRM-266, SRM-266S, SRM-266T, SRM-266U","description":"\u003ch2\u003e99944200903 Speed-Feed 450 Trimmer Head\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFeatures a rapid-loading system for trimmer line refills.\u003c\/li\u003e\n\u003cli\u003eBump-feed mechanism advances line with a simple tap on the ground.\u003c\/li\u003e\n\u003cli\u003eHolds up to 20 ft. of 0.095 in. diameter trimmer line.\u003c\/li\u003e\n\u003cli\u003eConstructed with a durable, high-impact housing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e99944200903\u003c\/li\u003e\n\u003cli\u003eX047000940\u003c\/li\u003e\n\u003cli\u003e28820-08000\u003c\/li\u003e\n\u003cli\u003e78890-21001\u003c\/li\u003e\n\u003cli\u003e385-288\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFits various ECHO straight-shaft grass trimmers and brushcutters.\u003c\/li\u003e\n\u003cli\u003eCommonly used on models such as the ECHO SRM266.\u003c\/li\u003e\n\u003cli\u003eRequires a 10 mm x 1.25 mm left-hand (LH) threaded arbor for installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe outer housing is cracked, broken, or excessively worn.\u003c\/li\u003e\n\u003cli\u003eThe bump knob fails to advance the trimmer line upon tapping.\u003c\/li\u003e\n\u003cli\u003eInternal components are worn and can no longer grip or feed the line properly.\u003c\/li\u003e\n\u003cli\u003eLine eyelets are damaged, causing the line to fray or break frequently.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDisconnect the spark plug before beginning installation for safety.\u003c\/li\u003e\n\u003cli\u003eLock the gearbox to prevent the head from rotating during removal.\u003c\/li\u003e\n\u003cli\u003eUnscrew the old head by turning it clockwise (it is reverse-threaded).\u003c\/li\u003e\n\u003cli\u003eSecure the new head by threading it on counter-clockwise until snug.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":45860030152893,"sku":"AZ00122742","price":16.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00652119_1_d54a28c7-672b-4132-b9e4-816d2364712b.jpg?v=1762245598"},{"product_id":"2-pcs-99944200903-speedfeed-450-trimmer-head-2pack","title":"[Upgraded] 99944200903 Speed-Feed 450 Trimmer Head - Fits Echo SRM-266, SRM-266S, SRM-266T, SRM-266U - 2 Pack","description":"\u003ch2\u003e99944200903 Speed-Feed 450 Trimmer Head\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightning-Fast Reloading:\u003c\/strong\u003e The patented Speed-Feed design allows you to reload the entire head with trimmer line in under 30 seconds without ever disassembling the housing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Capacity Professional Spool:\u003c\/strong\u003e Designed to hold up to 20 feet of 0.095\" diameter line, providing extended run times for commercial landscaping and heavy-duty residential clearing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooth Bump-Feed Advance:\u003c\/strong\u003e Features a heavy-duty internal spring and balanced centrifugal design for reliable, jam-free line advancement with a light tap on the ground.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility Hardware:\u003c\/strong\u003e Includes multiple arbor adapters (studs and nuts), making it a versatile replacement for most straight-shaft trimmers beyond just Echo models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDebris-Shielded Internal Gears:\u003c\/strong\u003e The internal indexing mechanism is sealed to prevent dirt, sap, and fine grass from entering the head and causing the \"bump\" action to stick.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e99944200903\u003c\/li\u003e\n\u003cli\u003eX047000940\u003c\/li\u003e\n\u003cli\u003e28820-08000\u003c\/li\u003e\n\u003cli\u003e78890-21001\u003c\/li\u003e\n\u003cli\u003e385-288\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eThis \"450\" series head is the heavy-duty upgrade for Echo's professional-grade straight-shaft trimmers. Key compatible models include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEcho SRM-266 Series:\u003c\/strong\u003e SRM-266, SRM-266S, SRM-266T (High Torque), SRM-266U (U-Handle).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEcho SRM-280 Series:\u003c\/strong\u003e SRM-280, SRM-280S, SRM-280T, SRM-280U.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEcho High-Capacity Models:\u003c\/strong\u003e SRM-3020, SRM-3020T, SRM-410U.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShindaiwa Models:\u003c\/strong\u003e T260, T261, T270, T272, T282, T344.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e Standard fitment is M10 x 1.25 LHF (Left Hand Female). Use the included adapters for other shaft sizes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorn-Through Bottom Cover:\u003c\/strong\u003e The bottom of the head (the bump area) has ground down from contact with pavement or soil, potentially exposing the internal spool.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCracked Outer Shell:\u003c\/strong\u003e Visible stress fractures in the black housing, which can lead to the head shattering or throwing internal parts at high RPM.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLine Won't Load:\u003c\/strong\u003e The internal \"eyelets\" no longer line up or the reloading mechanism is jammed with dried sap and debris.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcessive Vibration:\u003c\/strong\u003e The head has become unbalanced due to uneven wear or missing internal components, leading to potential gear-head failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyelet Failure:\u003c\/strong\u003e The metal line exits have fallen out or are deeply grooved, causing the trimmer line to snap off inside the head repeatedly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeft-Hand Threads:\u003c\/strong\u003e This head is \u003cstrong\u003eLeft-Hand Threaded\u003c\/strong\u003e. To install, turn the head \u003cstrong\u003eCounter-Clockwise\u003c\/strong\u003e onto the gear head shaft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Loading Arrow:\u003c\/strong\u003e To reload, rotate the top of the head until the arrows on the knob align with the metal eyelets. Push a single 20ft piece of line through until it comes out the other side evenly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWinding the Line:\u003c\/strong\u003e Once the line is centered, simply twist the top knob. The head will automatically pull the line inside and wind it perfectly on the spool.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGear Head Maintenance:\u003c\/strong\u003e While the head is off, check your gear head for old grass buildup. It is also the perfect time to add \u003cstrong\u003eLithium Grease\u003c\/strong\u003e to the gear-head port to prevent overheating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking the Shaft:\u003c\/strong\u003e Use a small hex key or screwdriver to lock the trimmer's gearbox before trying to unscrew your old head. If the old head is stuck, a pair of large channel-lock pliers may be required.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":45860036935869,"sku":"AZ00360156","price":34.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00360156_1_44ed8c0d-8463-496b-9245-e9e58ee4ee02.jpg?v=1762245593"},{"product_id":"99944200903-speedfeed-450-trimmer-head","title":"99944200903 Speed-Feed 450 Trimmer Head - Fits Echo SRM-266 SRM-266S SRM-266T SRM-266U","description":"\u003ch2\u003e99944200903 Speed-Feed 450 Trimmer Head for Echo SRM Series\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightning-Fast Reloading:\u003c\/strong\u003e The patented Speed-Feed design allows you to reload the entire head with trimmer line in under 30 seconds without ever disassembling the housing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Capacity Professional Spool:\u003c\/strong\u003e Designed to hold up to 20 feet of 0.095\" diameter line, providing extended run times for commercial landscaping and heavy-duty residential clearing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooth Bump-Feed Advance:\u003c\/strong\u003e Features a heavy-duty internal spring and balanced centrifugal design for reliable, jam-free line advancement with a light tap on the ground.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility Hardware:\u003c\/strong\u003e Includes multiple arbor adapters (studs and nuts), making it a versatile replacement for most straight-shaft trimmers beyond just Echo models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDebris-Shielded Internal Gears:\u003c\/strong\u003e The internal indexing mechanism is sealed to prevent dirt, sap, and fine grass from entering the head and causing the \"bump\" action to stick.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e99944200903\u003c\/li\u003e\n\u003cli\u003eX047000940\u003c\/li\u003e\n\u003cli\u003e28820-08000\u003c\/li\u003e\n\u003cli\u003e78890-21001\u003c\/li\u003e\n\u003cli\u003e385-288\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eThis \"450\" series head is the heavy-duty upgrade for Echo's professional-grade straight-shaft trimmers. Key compatible models include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEcho SRM-266 Series:\u003c\/strong\u003e SRM-266, SRM-266S, SRM-266T (High Torque), SRM-266U (U-Handle).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEcho SRM-280 Series:\u003c\/strong\u003e SRM-280, SRM-280S, SRM-280T, SRM-280U.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEcho High-Capacity Models:\u003c\/strong\u003e SRM-3020, SRM-3020T, SRM-410U.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShindaiwa Models:\u003c\/strong\u003e T260, T261, T270, T272, T282, T344.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e Standard fitment is M10 x 1.25 LHF (Left Hand Female). Use the included adapters for other shaft sizes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorn-Through Bottom Cover:\u003c\/strong\u003e The bottom of the head (the bump area) has ground down from contact with pavement or soil, potentially exposing the internal spool.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCracked Outer Shell:\u003c\/strong\u003e Visible stress fractures in the black housing, which can lead to the head shattering or throwing internal parts at high RPM.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLine Won't Load:\u003c\/strong\u003e The internal \"eyelets\" no longer line up or the reloading mechanism is jammed with dried sap and debris.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcessive Vibration:\u003c\/strong\u003e The head has become unbalanced due to uneven wear or missing internal components, leading to potential gear-head failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyelet Failure:\u003c\/strong\u003e The metal line exits have fallen out or are deeply grooved, causing the trimmer line to snap off inside the head repeatedly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeft-Hand Threads:\u003c\/strong\u003e This head is \u003cstrong\u003eLeft-Hand Threaded\u003c\/strong\u003e. To install, turn the head \u003cstrong\u003eCounter-Clockwise\u003c\/strong\u003e onto the gear head shaft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Loading Arrow:\u003c\/strong\u003e To reload, rotate the top of the head until the arrows on the knob align with the metal eyelets. Push a single 20ft piece of line through until it comes out the other side evenly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWinding the Line:\u003c\/strong\u003e Once the line is centered, simply twist the top knob. The head will automatically pull the line inside and wind it perfectly on the spool.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGear Head Maintenance:\u003c\/strong\u003e While the head is off, check your gear head for old grass buildup. It is also the perfect time to add \u003cstrong\u003eLithium Grease\u003c\/strong\u003e to the gear-head port to prevent overheating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking the Shaft:\u003c\/strong\u003e Use a small hex key or screwdriver to lock the trimmer's gearbox before trying to unscrew your old head. If the old head is stuck, a pair of large channel-lock pliers may be required.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":45870607958205,"sku":"AZ00172742","price":17.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00243755_1_b210827e-878e-49a3-a089-7283539fe8ac.jpg?v=1762245562"},{"product_id":"511010601-trimmer-head-2pack","title":"[Upgraded] 511010601 Trimmer Head - Fits Redmax PT104, PT-104 Plus, BC250, BC2300 - 2 Pack","description":"\u003ch2\u003e511010601 \/ PT104 Trimmer Head for Redmax String Trimmers\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Bump-Feed Mechanism:\u003c\/strong\u003e Designed for commercial-grade durability, the PT104 \"Plus\" style head allows for rapid line advancement with a simple tap on the ground during full-throttle operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Capacity Spool:\u003c\/strong\u003e Accommodates up to 20 feet of 0.095\" diameter line, significantly reducing downtime spent reloading during large landscaping jobs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReinforced Eyelets:\u003c\/strong\u003e Features high-grade metal alloy line exits that resist heat buildup and friction, preventing the trimmer line from \"welding\" to the head during heavy use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSplit-Spool Design:\u003c\/strong\u003e Engineered with an internal divider to prevent line tangling and \"overlapping,\" ensuring a smooth, consistent feed every time the head is bumped.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpact-Resistant Polymer:\u003c\/strong\u003e Manufactured from a specialized glass-filled nylon composite to withstand high-velocity impacts with rocks, curbs, and fence posts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e511010601\u003c\/li\u003e\n\u003cli\u003ePT104\u003c\/li\u003e\n\u003cli\u003e515638601\u003c\/li\u003e\n\u003cli\u003e521472101\u003c\/li\u003e\n\u003cli\u003e521540601\u003c\/li\u003e\n\u003cli\u003e970370901\u003c\/li\u003e\n\u003cli\u003e385-220\u003c\/li\u003e\n\u003cli\u003eBC00088\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eThis trimmer head is the standard \"professional choice\" for Redmax and Husqvarna-based straight shaft trimmers. Key compatible models include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRedmax BC Series:\u003c\/strong\u003e BC250, BC225, BC2300, BC2600.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRedmax BCZ Series:\u003c\/strong\u003e BCZ2400S, BCZ2401S, BCZ2460S, BCZ2460TS, BCZ2600S, BCZ2601S, BCZ2660TS, BCZ3060TS.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRedmax TR Series:\u003c\/strong\u003e TR2300S, TR2301S, TR2350S.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHusqvarna:\u003c\/strong\u003e Fits many 200 and 300 series straight shaft trimmers (e.g., 223L, 323L, 326L) utilizing the M10 x 1.25 LHF (Left Hand Female) arbor thread.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorn-Through Bump Knob:\u003c\/strong\u003e The red center knob has ground down to the point where the internal spring is exposed or it no longer triggers the line release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCracked Housing:\u003c\/strong\u003e Visible stress fractures in the black outer shell, which can lead to the head shattering at high RPMs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyelet Failure:\u003c\/strong\u003e The metal eyelets have fallen out or are deeply grooved, causing the line to snap off inside the head frequently.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Spool Jamming:\u003c\/strong\u003e The plastic \"teeth\" inside the head that lock the spool have rounded off, causing the head to dump all the line at once.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcessive Vibration:\u003c\/strong\u003e The head has become unbalanced due to uneven wear, putting unnecessary stress on the trimmer's gear head and shaft.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeft-Hand Threads:\u003c\/strong\u003e Remember, this head is \u003cstrong\u003eLeft-Hand Threaded\u003c\/strong\u003e. To tighten it onto the trimmer, you must turn it \u003cstrong\u003eCounter-Clockwise\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLock the Gear Head:\u003c\/strong\u003e Use a small screwdriver or the factory locking pin to hold the gear head shaft stationary while you spin the old head off and the new one on.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpool Direction:\u003c\/strong\u003e When reloading line, follow the arrows molded into the spool. Loading the line in the wrong direction will prevent the bump-feed mechanism from working.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoak Your Line:\u003c\/strong\u003e Professional tip: soak your trimmer line in a bucket of water for 24 hours before loading. This keeps the nylon flexible and prevents it from becoming brittle and snapping at the eyelet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean the Spring:\u003c\/strong\u003e Every time you reload the line, shake out any dirt or grass trapped around the internal spring to ensure the \"bump\" action stays smooth.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":46274126512317,"sku":"AZ00894010","price":23.64,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00115624_1_715338ff-9c8e-4f97-a772-90dbc8a2e0a3.jpg?v=1767694055"},{"product_id":"511010601-trimmer-head-3pack","title":"511010601 Trimmer Head - Fits Redmax PT104, PT-104 Plus, BC250, BC2300 - 3 Pack","description":"\u003ch2\u003e511010601 \/ PT104 Trimmer Head for Redmax String Trimmers\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Bump-Feed Mechanism:\u003c\/strong\u003e Designed for commercial-grade durability, the PT104 \"Plus\" style head allows for rapid line advancement with a simple tap on the ground during full-throttle operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Capacity Spool:\u003c\/strong\u003e Accommodates up to 20 feet of 0.095\" diameter line, significantly reducing downtime spent reloading during large landscaping jobs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReinforced Eyelets:\u003c\/strong\u003e Features high-grade metal alloy line exits that resist heat buildup and friction, preventing the trimmer line from \"welding\" to the head during heavy use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSplit-Spool Design:\u003c\/strong\u003e Engineered with an internal divider to prevent line tangling and \"overlapping,\" ensuring a smooth, consistent feed every time the head is bumped.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpact-Resistant Polymer:\u003c\/strong\u003e Manufactured from a specialized glass-filled nylon composite to withstand high-velocity impacts with rocks, curbs, and fence posts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e511010601\u003c\/li\u003e\n\u003cli\u003ePT104\u003c\/li\u003e\n\u003cli\u003e515638601\u003c\/li\u003e\n\u003cli\u003e521472101\u003c\/li\u003e\n\u003cli\u003e521540601\u003c\/li\u003e\n\u003cli\u003e970370901\u003c\/li\u003e\n\u003cli\u003e385-220\u003c\/li\u003e\n\u003cli\u003eBC00088\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eThis trimmer head is the standard \"professional choice\" for Redmax and Husqvarna-based straight shaft trimmers. Key compatible models include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRedmax BC Series:\u003c\/strong\u003e BC250, BC225, BC2300, BC2600.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRedmax BCZ Series:\u003c\/strong\u003e BCZ2400S, BCZ2401S, BCZ2460S, BCZ2460TS, BCZ2600S, BCZ2601S, BCZ2660TS, BCZ3060TS.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRedmax TR Series:\u003c\/strong\u003e TR2300S, TR2301S, TR2350S.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHusqvarna:\u003c\/strong\u003e Fits many 200 and 300 series straight shaft trimmers (e.g., 223L, 323L, 326L) utilizing the M10 x 1.25 LHF (Left Hand Female) arbor thread.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorn-Through Bump Knob:\u003c\/strong\u003e The red center knob has ground down to the point where the internal spring is exposed or it no longer triggers the line release.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCracked Housing:\u003c\/strong\u003e Visible stress fractures in the black outer shell, which can lead to the head shattering at high RPMs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyelet Failure:\u003c\/strong\u003e The metal eyelets have fallen out or are deeply grooved, causing the line to snap off inside the head frequently.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Spool Jamming:\u003c\/strong\u003e The plastic \"teeth\" inside the head that lock the spool have rounded off, causing the head to dump all the line at once.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcessive Vibration:\u003c\/strong\u003e The head has become unbalanced due to uneven wear, putting unnecessary stress on the trimmer's gear head and shaft.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeft-Hand Threads:\u003c\/strong\u003e Remember, this head is \u003cstrong\u003eLeft-Hand Threaded\u003c\/strong\u003e. To tighten it onto the trimmer, you must turn it \u003cstrong\u003eCounter-Clockwise\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLock the Gear Head:\u003c\/strong\u003e Use a small screwdriver or the factory locking pin to hold the gear head shaft stationary while you spin the old head off and the new one on.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpool Direction:\u003c\/strong\u003e When reloading line, follow the arrows molded into the spool. Loading the line in the wrong direction will prevent the bump-feed mechanism from working.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoak Your Line:\u003c\/strong\u003e Professional tip: soak your trimmer line in a bucket of water for 24 hours before loading. This keeps the nylon flexible and prevents it from becoming brittle and snapping at the eyelet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean the Spring:\u003c\/strong\u003e Every time you reload the line, shake out any dirt or grass trapped around the internal spring to ensure the \"bump\" action stays smooth.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":46329462292669,"sku":"AZ00248680","price":31.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00951443_1_782ad44f-0c5f-4e76-ab56-c324fb8eb0b8.jpg?v=1768982610"},{"product_id":"99944200903-speedfeed-450-trimmer-head-2pack","title":"99944200903 Speed-Feed 450 Trimmer Head - Fits Echo SRM-266, SRM-266S, SRM-266T, SRM-266U - 2 Pack","description":"\u003ch2\u003e99944200903 Speed-Feed 450 Trimmer Head\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e30-Second Reload:\u003c\/strong\u003e Engineered with \"Speed-Feed\" technology that allows the spool to be reloaded without disassembly. Simply align the arrows, feed the line through, and twist the knob.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Capacity Spool:\u003c\/strong\u003e Designed for professional use, holding more line than standard manual heads to reduce downtime on large properties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Bump Feed:\u003c\/strong\u003e Features a reinforced, high-impact bump knob and specialized eyelets to withstand high-RPM contact with concrete and fencing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Compatibility:\u003c\/strong\u003e Includes a set of adapter bushings and studs to fit a wide variety of straight-shaft and curved-shaft trimmers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Balance:\u003c\/strong\u003e Manufactured to strict tolerances to reduce vibration, extending the life of the trimmer's gear head and reducing operator fatigue.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e99944200903\u003c\/li\u003e\n\u003cli\u003eX047000940\u003c\/li\u003e\n\u003cli\u003e28820-08000\u003c\/li\u003e\n\u003cli\u003e78890-21001\u003c\/li\u003e\n\u003cli\u003e385-288\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eThis trimmer head is a standard upgrade for Echo and Shindaiwa professional units. Key compatible models include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEcho SRM Series:\u003c\/strong\u003e SRM-266, SRM-266S, SRM-266T, SRM-266U, SRM-280, SRM-280S, SRM-280T.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEcho High-Torque:\u003c\/strong\u003e SRM-2620, SRM-2620T, SRM-3020, SRM-3020T.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShindaiwa:\u003c\/strong\u003e T230, T231, T242, T2510, T260, T261, T270, T272, T282, T344.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOther Brands:\u003c\/strong\u003e Fits select Stihl, Husqvarna, Maruyama, and RedMax straight-shaft trimmers using the included adapter kit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorn-Through Bump Knob:\u003c\/strong\u003e The plastic on the bottom knob has worn down to the spring or internal metal, preventing the line from advancing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrooved Eyelets:\u003c\/strong\u003e The metal eyelets (where the line exits) have developed deep notches, causing the trimmer line to break off inside the head.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStuck Mechanism:\u003c\/strong\u003e The internal ratcheting gear is stripped or melted due to line friction, making it impossible to reload.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcessive Vibration:\u003c\/strong\u003e The head is physically cracked or missing a piece, creating an imbalance that can damage the trimmer's driveshaft.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation \u0026amp; Loading Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeft-Hand Threads:\u003c\/strong\u003e Most straight-shaft trimmers (like the SRM-266) use a counter-clockwise tightening direction. Spin the old head clockwise to remove it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlign the Arrows:\u003c\/strong\u003e To load, rotate the top knob until the arrows on the side of the knob line up with the eyelets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe 10-Foot Rule:\u003c\/strong\u003e Insert approximately 10–12 feet of .095\" line through one eyelet and out the other. Pull it through until the lengths are even on both sides.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWinding:\u003c\/strong\u003e Hold the trimmer head and twist the bottom disc (or knob) to pull the line into the spool. Do not wind it manually by opening the head unless there is a tangle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Line:\u003c\/strong\u003e For best results on Echo 266\/280 models, use \u003cstrong\u003e.095\" or .105\" professional round or square line\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":46497320566973,"sku":"AZ00116005","price":25.29,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00231635_1.jpg?v=1757320711"},{"product_id":"speed-feed-400-trimmer-head-cap-and-spring-kit-4pack","title":"X472000070 Speed Feed 400 Trimmer Head Cap \u0026 Spring Kit - Fits Echo SRM-225 SRM-225i SRM-225SB SRM-225U - 4 Pack","description":"\u003ch2\u003eX472000070 Speed Feed 400 Trimmer Head Cap \u0026amp; Spring Kit\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePackage includes: 4 replacement caps and 4 replacement springs.\u003c\/li\u003e\n\u003cli\u003eDesigned for trimmer heads with a rapid line loading system.\u003c\/li\u003e\n\u003cli\u003eConstructed from high-impact plastic for durability.\u003c\/li\u003e\n\u003cli\u003eDirect replacement for the original cap and spring assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eX472000070\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFits Echo Speed Feed 400 trimmer heads.\u003c\/li\u003e\n\u003cli\u003eCompatible with Echo SRM series straight shaft trimmers, including: SRM-210, SRM-225, SRM-230, SRM-250, SRM-265, SRM-266, SRM-266S, SRM-280, SRM-2620.\u003c\/li\u003e\n\u003cli\u003eCompatible with Echo PAS series attachments, including: PAS-225.\u003c\/li\u003e\n\u003cli\u003eCompatible with Echo GT series trimmers, including: GT-225L, GT-230.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe existing cap is cracked, broken, or heavily worn from contact with hard surfaces.\u003c\/li\u003e\n\u003cli\u003eThe internal spring is lost, broken, or has lost tension.\u003c\/li\u003e\n\u003cli\u003eThe trimmer line fails to advance when the head is bumped on the ground.\u003c\/li\u003e\n\u003cli\u003eThe cap no longer fits securely onto the trimmer head housing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure the trimmer engine is stopped and the spark plug is disconnected before performing maintenance.\u003c\/li\u003e\n\u003cli\u003eRemove the old cap by pressing the locking tabs or unscrewing it from the trimmer head.\u003c\/li\u003e\n\u003cli\u003eRemove the old spring and clear any debris from the head assembly.\u003c\/li\u003e\n\u003cli\u003ePlace the new spring into its housing.\u003c\/li\u003e\n\u003cli\u003eAlign the new cap with the trimmer head and press or twist until it locks into place.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":46543224406205,"sku":"AZ00232824","price":21.06,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00232824_1.jpg?v=1774492869"},{"product_id":"sb00l00-string-trimmer-replacement-spool-6pack","title":"SB00L00 String Trimmer Spool - Fits Greenworks 60V 80V ST60V ST60V-T0 ST80L200-0.08\" Dual Line Trimmer - Refill - 6 Pack","description":"\u003ch2\u003eSB00L00 String Trimmer Replacement Spool\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eModel: SB00L00\u003c\/li\u003e\n\u003cli\u003eLine Diameter: 0.080 inch (2.0 mm)\u003c\/li\u003e\n\u003cli\u003eLine Length: 17 feet per spool\u003c\/li\u003e\n\u003cli\u003eLine Type: Dual-line\u003c\/li\u003e\n\u003cli\u003eSpool Material: Acrylonitrile Butadiene Styrene (ABS)\u003c\/li\u003e\n\u003cli\u003eLine Material: Polyamide nylon\u003c\/li\u003e\n\u003cli\u003eFeed System: Compatible with bump feed trimmer heads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGreenworks: \u003cmeta charset=\"utf-8\"\u003eSB00L00, 2906302, 2901619\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eGreenworks:\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003e40V, 48V, 60V, and 80V bump feed dual line string trimmers\u003c\/li\u003e\n\u003cli\u003eST60V\u003c\/li\u003e\n\u003cli\u003eST60V-T0\u003c\/li\u003e\n\u003cli\u003eST80L200\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSnapper:\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003eST60V\u003c\/li\u003e\n\u003cli\u003eST60V-T0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eKobalt:\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003e40V String Trimmer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eExisting trimmer line is fully depleted.\u003c\/li\u003e\n\u003cli\u003eSpool is cracked or damaged, preventing proper line feed.\u003c\/li\u003e\n\u003cli\u003eTrimmer line becomes brittle and breaks frequently.\u003c\/li\u003e\n\u003cli\u003eNoticeable decrease in cutting performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDisconnect the tool from its power source before changing accessories. Remove the battery pack.\u003c\/li\u003e\n\u003cli\u003ePress the release tabs on the trimmer head to remove the cap and old spool.\u003c\/li\u003e\n\u003cli\u003eInsert the new spool, aligning it with the housing.\u003c\/li\u003e\n\u003cli\u003eFeed the ends of the trimmer line through the eyelets on the trimmer head.\u003c\/li\u003e\n\u003cli\u003eSnap the cap back onto the trimmer head until it is secure.\u003c\/li\u003e\n\u003cli\u003eAlways wear eye protection during operation.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":46543269789885,"sku":"AZ00791496","price":21.06,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00791496_1.jpg?v=1774492894"},{"product_id":"fsa-56-replacement-spool-for-stihl-string-trimmer-3pack","title":"FSA 56 Spool for Stihl String Trimmer - Fits AutoCut 2-2 25-2 C2-2 Grass Trimmer Line - Replaces 4008-710-4301 - 3 Pack","description":"\u003ch2\u003eFSA 56 Replacement Spool for Stihl String Trimmer\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePackage contains three (3) replacement spools.\u003c\/li\u003e\n\u003cli\u003eArrives pre-wound with nylon trimmer line for immediate use.\u003c\/li\u003e\n\u003cli\u003eDesigned for bump-feed trimmer heads, allowing for line advancement during operation.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e4008 710 4301\u003c\/li\u003e\n\u003cli\u003e4008 710 4302\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eBrand:\u003c\/b\u003e Stihl\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrimmer Model:\u003c\/b\u003e FSA 56\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrimmer Head Models:\u003c\/b\u003e 2-2, C2-2, 25-2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe current spool has run out of trimmer line.\u003c\/li\u003e\n\u003cli\u003eThe spool is cracked, warped, or otherwise physically damaged.\u003c\/li\u003e\n\u003cli\u003eThe trimmer line frequently breaks, binds, or fails to feed correctly from the existing spool.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDisconnect the power source by removing the battery before performing any maintenance.\u003c\/li\u003e\n\u003cli\u003ePress the tabs on the trimmer head to remove the cap and expose the spool.\u003c\/li\u003e\n\u003cli\u003eRemove the old spool and clean any debris from the head housing.\u003c\/li\u003e\n\u003cli\u003eInsert the new spool, aligning it with the internal mechanism.\u003c\/li\u003e\n\u003cli\u003eFeed the ends of the nylon line through the eyelets in the trimmer head.\u003c\/li\u003e\n\u003cli\u003eRe-install the cap, ensuring it clicks securely into place.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":46543273033917,"sku":"AZ00346921","price":21.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00346921_1.jpg?v=1774492881"},{"product_id":"c32-trimmer-head-spool-4pack","title":"C3-2 Trimmer Head Spool - Fits Stihl C3-2 FSA 57 FSE 52 FSA57 FSE52 Weed - Replaces 4009-710-4305 4009-710-4306 - 4 Pack","description":"\u003ch2\u003eC3-2 Trimmer Head Spool 4009 710 4305\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePackage contains four (4) replacement spools.\u003c\/li\u003e\n\u003cli\u003ePre-wound with trimmer line for immediate use.\u003c\/li\u003e\n\u003cli\u003eDesigned for trimmer heads with automatic line feed systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e4009 710 4305\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e4009 710 4306\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFits Stihl trimmers equipped with the C3-2 trimmer head.\u003c\/li\u003e\n\u003cli\u003eCompatible Models: Stihl FSE 52, Stihl FSA 57.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eImportant Note for FSA 57:\u003c\/b\u003e This spool is only compatible with FSA 57 trimmers with a serial number beginning with 5 (e.g., 5XXXXXXXX). Please verify your serial number before purchasing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTrimmer line is fully depleted from the existing spool.\u003c\/li\u003e\n\u003cli\u003eThe spool is cracked, warped, or will not unwind smoothly.\u003c\/li\u003e\n\u003cli\u003eLine feeding becomes inconsistent or frequently jams.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAlways disconnect the power source (remove battery) before handling the trimmer head.\u003c\/li\u003e\n\u003cli\u003eDepress the two tabs on the side of the trimmer head to remove the cap.\u003c\/li\u003e\n\u003cli\u003eRemove the old spool and any debris from the housing.\u003c\/li\u003e\n\u003cli\u003eInsert the new spool, aligning it correctly within the housing.\u003c\/li\u003e\n\u003cli\u003eThread the line ends through the eyelets on the trimmer head.\u003c\/li\u003e\n\u003cli\u003eReinstall the cap, ensuring it clicks securely into place.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":46609420583101,"sku":"AZ00859114","price":18.72,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00859114_1.jpg?v=1775538273"}],"url":"https:\/\/bluestarspartstrend.com\/collections\/string-trimmer-cutting-head.oembed","provider":"BlueStars Parts","version":"1.0","type":"link"}