{"product_id":"wiseco-wpc127-crankshaft-kit-yamaha-yz250-moto-house-mx","title":"Wiseco Crankshaft Kit WPC127 — Yamaha YZ250 2001-2002","description":"\u003cdiv\u003e\n\u003ch1\u003e\u003cstrong\u003eWiseco Crankshaft Kit WPC127 — Yamaha YZ250 2001-2002\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eWiseco Crankshaft Kit\u003c\/strong\u003e (WPC127) is the comprehensive bottom-end solution engineered to bring your \u003cstrong\u003eYamaha YZ250\u003c\/strong\u003e back to race-ready performance. Each crankshaft is factory-assembled and precision-trued to exact OEM specifications, ensuring a smooth, reliable engine that can handle the rigors of competitive motocross. This all-in-one kit includes the crankshaft assembly, high-quality main bearings, and a complete bottom-end gasket kit to make your rebuild efficient and professional.\u003c\/p\u003e\n\u003cp\u003eWiseco utilizes double-forged connecting rods with shot-peened surfaces to eliminate residual stress, paired with precision-honed bearing surfaces for maximum longevity. The engineering doesn't stop there; optimized oiling slots and double-drilled small ends provide superior lubrication and cooling for the piston pin, significantly reducing thermal distortion in the top end during intense riding sessions.\u003c\/p\u003e\n\u003ch3\u003eTop Features: Wiseco Crankshaft Kit\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComplete Bottom-End Kit:\u003c\/strong\u003e Includes the precision-trued crankshaft assembly, main bearings, and bottom-end gaskets.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDouble-Forged Rods:\u003c\/strong\u003e Wiseco rods feature improved grain flow and shot-peened surfaces to maximize strength and fatigue resistance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptimized Lubrication:\u003c\/strong\u003e Precision-engineered oiling slots and double-drilled small ends extend bearing life and reduce piston thermal transfer.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFactory Trued:\u003c\/strong\u003e Precision-engineered to meet or exceed OEM specifications for vibration-free performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eFitment List\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003cth\u003eYear Range\u003c\/th\u003e\n    \u003cth\u003eVehicle Brand\u003c\/th\u003e\n    \u003cth\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003e2001-2002\u003c\/td\u003e\n    \u003ctd\u003eYamaha\u003c\/td\u003e\n    \u003ctd\u003eYZ250\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this kit include the top-end piston?\u003c\/strong\u003e\u003cbr\u003e\nA: No, this is a dedicated bottom-end crankshaft kit. It includes the crankshaft, main bearings, and bottom-end gaskets. You will need to source a piston kit separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this crankshaft pre-trued?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. All Wiseco crankshafts are factory-assembled and precision-trued to OEM specifications, meaning they are ready for direct installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e When installing your new crankshaft, ensure the engine cases are perfectly clean and free of old gasket sealant. Using a high-quality assembly lube on the main bearings and crank pin is essential to prevent dry-start wear during the first few rotations of your engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-yz250-and-yz250x-performance-parts-collection-at-moto-house-mx\"\u003eYamaha YZ250 Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-2-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eYamaha 2-Stroke Performance Parts\u003c\/a\u003e\u003cbr\u003e\no    \u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003ePremium Motorcycle Chemicals\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Wiseco Crankshaft Kit WPC127\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Wiseco\"\n  },\n  \"mpn\": \"WPC127\",\n  \"description\": \"Complete Wiseco crankshaft kit for Yamaha YZ250. Includes crankshaft, main bearings, and bottom-end gasket kit for a comprehensive rebuild.\",\n  \"category\": \"Crankshaft Kit\"\n}\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":39273349120083,"sku":"WPC127","price":430.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/wiseco-oem-replacement-bottom-end-kit-wpc127-yamaha-yz250-2001-2002-937509.jpg?v=1738049581","url":"https:\/\/motohousemx.com\/products\/wiseco-wpc127-crankshaft-kit-yamaha-yz250-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}