{"product_id":"chainsaw-decompression-valve-ms660-ms440-ms390-ms381-ms260","title":"Chainsaw Decompression Valve for MS660 MS440 MS390 MS381 MS260","description":"\u003cp\u003eKeep your chainsaw starting smoothly and running efficiently with this direct-fit \u003cstrong\u003eDecompression Valve (Pressure Reducing Valve)\u003c\/strong\u003e designed for popular Stihl MS-series chainsaws. Crafted from durable metal, this 100% brand-new replacement part is engineered to fit a wide range of models, making it an ideal solution for home DIY maintenance and professional servicing alike.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e MS660, MS440, MS390, MS381, MS260 and other compatible MS-series chainsaws. \u003cem\u003ePlease compare the appearance, shape, and size with your original part before ordering to ensure correct fitment.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100% Brand New\u003c\/strong\u003e — fresh replacement, not refurbished\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Metal Construction\u003c\/strong\u003e — built to withstand repeated use and high-cycle operation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Fit\u003c\/strong\u003e — compatible with multiple MS-series chainsaw models\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Installation\u003c\/strong\u003e — drop-in replacement for straightforward DIY servicing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRestores Easy Starting\u003c\/strong\u003e — reduces cylinder compression for effortless pull-starts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSuitable for Home \u0026amp; Outdoor Use\u003c\/strong\u003e — ideal for garden, yard, and woodland maintenance tasks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDecompression \/ Pressure Reducing Valve\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMS660, MS440, MS390, MS381, MS260\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Chainsaw Decompression Valve\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRelated Products You May Need\u003c\/h2\u003e\n\u003cp\u003eLooking for more tools and hardware for your projects? Check out these related items from our store:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/25-in-1-precision-magnetic-screwdriver-set-pro-repair-tool-kit\"\u003e25-in-1 Precision Magnetic Screwdriver Set | Pro Repair Kit\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/34-compartment-double-sided-hardware-storage-box-removable-dividers\"\u003e34-Compartment Double-Sided Hardware Storage Box \u0026amp; Dividers\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/5-in-1-diamond-ceramic-knife-sharpener-kitchen-scissors\"\u003e5-in-1 Diamond Knife Sharpener | Kitchen \u0026amp; Scissor Sharpener\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 chainsaw models is this decompression valve compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This decompression valve is designed to fit Stihl MS-series chainsaws including the MS660, MS440, MS390, MS381, and MS260. Before ordering, please compare the shape, size, and appearance with your original part to confirm compatibility with your specific model.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What does a chainsaw decompression valve do?\u003c\/h4\u003e\n\u003cp\u003eA: A decompression valve temporarily reduces the compression pressure inside the cylinder, making it significantly easier to pull the starter cord and get the chainsaw running — especially on larger, high-displacement engines like the MS660 and MS440.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this part easy to install at home?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! This is a direct drop-in replacement part suitable for home DIY maintenance. No specialist tools are required. Simply remove the old valve and thread in the new one. If you are unsure, consult your chainsaw's service manual or a qualified technician.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What material is this decompression valve made from?\u003c\/h4\u003e\n\u003cp\u003eA: The valve is constructed from durable metal, ensuring longevity and reliable performance even under the demanding conditions of chainsaw operation.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Which chainsaw models is this decompression valve compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This decompression valve is designed to fit Stihl MS-series chainsaws including the MS660, MS440, MS390, MS381, and MS260. 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