{"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","url":"https:\/\/bluestarspartstrend.com\/products\/21560070-trimmer-head-for-echo-echomatic","provider":"BlueStars Parts","version":"1.0","type":"link"}