{"product_id":"2-pcs-srm225-string-trimmer-head","title":"SRM-225 String Trimmer Head - Fits Echo SRM-225 SRM-210 SRM-2100 - 2 Pack","description":"\u003ch2\u003eSRM-225 String 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 400 design allows you to reload the trimmer line in under 30 seconds without disassembling the head; simply line up 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 to hold a significant amount of 0.080\" or 0.095\" diameter line, reducing downtime and keeping you in the yard longer between refills.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmooth Bump-Feed Advance:\u003c\/strong\u003e Features a precision-balanced internal mechanism that provides reliable line advancement with a light tap on the ground, minimizing line welding and jams.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Construction:\u003c\/strong\u003e Manufactured from high-impact, glass-reinforced nylon to withstand the rigors of commercial landscaping and high-velocity contact with hard obstacles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Vibration Operation:\u003c\/strong\u003e The factory-balanced design reduces engine and shaft vibration, leading to less operator fatigue and a longer lifespan for your trimmer's gear head.\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\u003eEcho Speed Feed 400:\u003c\/strong\u003e 99944200907, 99944200907B, 99944200902, 99944200900\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eThis \"400\" series head is the standard replacement for most Echo and Shindaiwa straight-shaft trimmers. Key compatible models include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEcho SRM Series:\u003c\/strong\u003e SRM-225, SRM-225i, SRM-210, SRM-2100, SRM-200, SRM-230, SRM-250, SRM-265, SRM-266.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShindaiwa T-Series:\u003c\/strong\u003e T195S, T220, T222, T230, T231, T242, T242X.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTechnical Fitment:\u003c\/strong\u003e Designed for straight-shaft trimmers 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 Cap:\u003c\/strong\u003e The center knob has ground down from pavement contact to the point where it no longer functions or the internal spring is exposed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCracked Outer Shell:\u003c\/strong\u003e Visible fractures in the black housing which can cause the head to shatter or become dangerously unbalanced at high RPMs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoading Mechanism Failure:\u003c\/strong\u003e The internal eyelets no longer align with the arrows, or the twisting mechanism has become stripped or seized with debris.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMissing Eyelets:\u003c\/strong\u003e The metal line exits have fallen out or are deeply grooved, causing the trimmer line to snap off inside the head constantly.\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 engine.\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\u003eLock the Shaft:\u003c\/strong\u003e Insert a small screwdriver 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\u003eThe Loading Arrow:\u003c\/strong\u003e To reload, rotate the top knob until the arrows on the knob align perfectly with the metal eyelets. Push your line straight through the head until it is even on both sides, then twist the knob to wind.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLine Choice:\u003c\/strong\u003e For the SRM-225, \u003cstrong\u003e0.095\" line\u003c\/strong\u003e provides the best balance of durability and cutting power without over-stressing the engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoak Your Line:\u003c\/strong\u003e Professional tip: keep your spare trimmer line in a bucket of water. Hydrated nylon is much more flexible and significantly less likely to snap at the eyelet during heavy use.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":45371210596541,"sku":"AZ00371297","price":13.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00371297_1_78a2282a-6223-47ac-b602-f155c2f188d4.jpg?v=1762246287","url":"https:\/\/bluestarspartstrend.com\/products\/2-pcs-srm225-string-trimmer-head","provider":"BlueStars Parts","version":"1.0","type":"link"}