{"title":"Weed Eater Brand","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":"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":"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"}],"url":"https:\/\/bluestarspartstrend.com\/collections\/weed-eater-brand.oembed","provider":"BlueStars Parts","version":"1.0","type":"link"}