{"product_id":"chainsaw-carburetor-ms640-ms650-ms660-replaces-wj-67a-1","title":"Chainsaw Carburetor MS640 MS650 MS660 – Replaces WJ-67A","description":"\n\u003ch2\u003eChainsaw Carburetor Replacement for MS640, MS650 \u0026amp; MS660 – Replaces WJ-67A \/ C3A-S31\u003c\/h2\u003e\n\u003cp\u003eKeep your chainsaw running at peak performance with this precision-engineered replacement carburetor, designed to fit Stihl MS640, MS650, and MS660 models. Built from durable metal with exact OEM-matching dimensions, this carburetor ensures reliable fuel delivery, smooth throttle response, and consistent power output — whether you're tackling heavy timber or routine yard work.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect Fit for MS640 \/ MS650 \/ MS660:\u003c\/strong\u003e Engineered for seamless, drop-in installation with no modifications required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReplaces WJ-67A \u0026amp; C3A-S31:\u003c\/strong\u003e A true OEM-spec replacement for straightforward swapping and immediate results.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReliable Fuel Delivery:\u003c\/strong\u003e Precision-machined channels and jets maintain optimal fuel-to-air mixture for consistent, powerful output.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight Metal Construction:\u003c\/strong\u003e Weighs only 147 g — sturdy enough for demanding environments without adding unnecessary bulk to your equipment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLong-Lasting Durability:\u003c\/strong\u003e Built to withstand tough outdoor conditions, high vibration, and prolonged operation cycles.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Matches original mounting points and fuel line connections for a quick, tool-compatible swap.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Models\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStihl MS640, MS650, MS660\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplaces OEM Numbers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWJ-67A, C3A-S31\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\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e147 g\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 piece\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\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Replacement Carburetor (WJ-67A \/ C3A-S31 compatible)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eProduct color may appear slightly different from images due to monitor brightness and lighting conditions.\u003c\/li\u003e\n  \u003cli\u003ePlease allow slight measurement tolerances for listed dimensions.\u003c\/li\u003e\n  \u003cli\u003eVerify your exact chainsaw model number before ordering to ensure compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Need\u003c\/h3\u003e\n\u003cul\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  \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\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Which chainsaw models is this carburetor compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This replacement carburetor is designed to fit Stihl MS640, MS650, and MS660 chainsaws. It directly replaces OEM part numbers WJ-67A and C3A-S31. Always double-check your saw's model and serial number before installing.\u003c\/p\u003e\n\u003ch4\u003eQ: Is any special tool required to install this carburetor?\u003c\/h4\u003e\n\u003cp\u003eA: No special tools are required beyond standard chainsaw maintenance tools. The carburetor matches original mounting points and fuel line connections exactly, making installation straightforward for anyone comfortable with basic engine servicing.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this an OEM part or an aftermarket replacement?\u003c\/h4\u003e\n\u003cp\u003eA: This is a high-quality aftermarket replacement part engineered to OEM specifications. It is designed to deliver the same reliable fuel delivery and performance as the original, at a more accessible price point.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the carburetor made of?\u003c\/h4\u003e\n\u003cp\u003eA: The carburetor is constructed from durable metal, built to withstand the high-vibration, high-temperature demands of professional chainsaw use in tough outdoor environments.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Which chainsaw models is this carburetor compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This replacement carburetor is designed to fit Stihl MS640, MS650, and MS660 chainsaws. It directly replaces OEM part numbers WJ-67A and C3A-S31. 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It is designed to deliver the same reliable fuel delivery and performance as the original, at a more accessible price point.\"}}, {\"@type\": \"Question\", \"name\": \"What is the carburetor made of?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The carburetor is constructed from durable metal, built to withstand the high-vibration, high-temperature demands of professional chainsaw use in tough outdoor environments.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Chainsaw Carburetor MS640 MS650 MS660 – Replaces WJ-67A\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/products\/chainsaw-carburetor-ms640-ms650-ms660-replaces-wj-67a-c3a-s31\"}]}\u003c\/script\u003e","brand":"Axl","offers":[{"title":"China Mainland","offer_id":43680201670717,"sku":"200007763:201336100","price":67.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/3439\/0333\/files\/S3ebc5426bb3542d585c08a5645b74c892_f7992e99-9425-4585-b7ea-b20f1b6f2176.webp?v=1790149543","url":"https:\/\/qtiply.com\/products\/chainsaw-carburetor-ms640-ms650-ms660-replaces-wj-67a-1","provider":"QTP","version":"1.0","type":"link"}