{"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":29.25,"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","url":"https:\/\/bluestarspartstrend.com\/products\/2pack-t35-tap-advance-trimmer-head-537388101","provider":"BlueStars Parts","version":"1.0","type":"link"}