{"product_id":"chain-bar-tensioner-adjuster-kit-echo-cs400-cs450-chainsaw-1","title":"Chain Bar Tensioner Adjuster Kit for ECHO CS400 CS-450","description":"\n\u003ch2\u003eChain Bar Tensioner Adjuster Kit for ECHO CS400 \/ CS-400 \/ CS-450 Chainsaw\u003c\/h2\u003e\n\u003cp\u003eKeep your ECHO chainsaw running at peak performance with this precision-engineered \u003cstrong\u003eChain Bar Tensioner Adjuster Kit\u003c\/strong\u003e. Designed as a direct replacement for multiple OEM part numbers, this 6-piece alloy steel kit delivers reliable tensioning, proper chain alignment, and long-lasting durability — everything you need to get your saw back in action fast.\u003c\/p\u003e\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect-Fit Compatibility:\u003c\/strong\u003e Specifically engineered for ECHO CS400, CS-400, and CS-450 chainsaw models — no modifications needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReplaces Multiple OEM Part Numbers:\u003c\/strong\u003e Covers V651000001, V651000011, V203000110, C309000030, V355000800 (tensioner) and C305000011 (sprocket guard), simplifying your parts sourcing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e Includes 1 × Adjusting Screw and 1 × CS370 Oil Pump Cover — all components required for a full, effective installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAlloy Steel Construction:\u003c\/strong\u003e Built from durable metal alloy to withstand the demanding rigors of regular chainsaw operation, maintaining consistent performance over time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecision Engineered:\u003c\/strong\u003e Manufactured to tight tolerances that closely match original factory specifications, ensuring smooth installation and reliable chain tension adjustment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eChain Bar Tensioner Adjuster Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Models\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eECHO CS400, CS-400, CS-450\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplaces Part Numbers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eV651000001, V651000011, V203000110, C309000030, V355000800, C305000011\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAlloy Steel \/ Metal\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Pieces\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAssembly Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Adjusting Screw\u003c\/li\u003e\n  \u003cli\u003e1 × CS370 Oil Pump Cover\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eActual color may vary slightly from product images due to monitor settings and lighting conditions.\u003c\/li\u003e\n  \u003cli\u003ePlease allow for minor measurement tolerances in listed dimensions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/360-bicycle-chain-cleaner-tool-gear-cleaning-kit\"\u003e360° Bicycle Chain Cleaner Tool | Bike Gear Cleaning Kit\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/garden-pruner-shears-secateurs-bonsai-fruit-trees\"\u003eGarden Pruner Shears – Secateurs for Bonsai \u0026amp; Fruit Trees\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Which ECHO chainsaw models is this tensioner adjuster kit compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This chain bar tensioner adjuster kit is specifically designed to fit the ECHO CS400, CS-400, and CS-450 chainsaw models. It replaces OEM part numbers V651000001, V651000011, V203000110, C309000030, V355000800, and C305000011. Always verify your model number before ordering.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is included in the chain bar tensioner adjuster kit?\u003c\/h4\u003e\n\u003cp\u003eA: The kit includes 1 × Adjusting Screw and 1 × CS370 Oil Pump Cover, totalling 6 individual pieces. Everything needed for a complete installation is included — no additional parts required.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this an OEM part or an aftermarket replacement?\u003c\/h4\u003e\n\u003cp\u003eA: This is a precision-engineered aftermarket replacement kit manufactured by NEWONE. It is designed to meet or exceed the specifications of the original factory components, ensuring a proper fit and reliable performance for your ECHO CS400 or CS-450 chainsaw.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this tensioner kit require any special tools to install?\u003c\/h4\u003e\n\u003cp\u003eA: No special tools beyond standard chainsaw maintenance equipment are required. The kit is designed for a straightforward drop-in installation, and assembly is not required prior to fitting. Always consult your chainsaw's service manual for step-by-step guidance.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Which ECHO chainsaw models is this tensioner adjuster kit compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This chain bar tensioner adjuster kit is specifically designed to fit the ECHO CS400, CS-400, and CS-450 chainsaw models. It replaces OEM part numbers V651000001, V651000011, V203000110, C309000030, V355000800, and C305000011. Always verify your model number before ordering.\"}}, {\"@type\": \"Question\", \"name\": \"What is included in the chain bar tensioner adjuster kit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The kit includes 1 × Adjusting Screw and 1 × CS370 Oil Pump Cover, totalling 6 individual pieces. 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