{"product_id":"hot-rods-k021-crank-bearing-seal-kit-01-24-yamaha-yz250f-yz250fx-yz450f","title":"Hot Rods K021 Crank Bearing \u0026 Seal Kit 01-24 Yamaha YZ250F YZ250FX YZ450F","description":"\u003cp\u003eWhen you are splitting the cases for a bottom-end rebuild, don't risk your engine's longevity on worn-out components. The Hot Rods K021 Main Crankshaft Bearing and Seal Kit is the definitive \u003cstrong\u003eOEM Replacement\u003c\/strong\u003e solution designed to provide a smooth, reliable foundation for your high-performance motor. Moto-House MX understands that precision is everything in motocross, and this kit delivers the professional-grade reliability required to keep your Yamaha on the track and out of the shop.\u003c\/p\u003e\n\u003cp\u003eEach kit is engineered to complement Hot Rods crankshaft assemblies, featuring precision-machined ball bearings and high-pressure seals that meet or exceed factory specifications. These components are built to withstand the extreme heat and rotational stress of modern four-stroke engines, ensuring optimal oil retention and reduced friction. Whether you are racing professionally or hitting the local trails, this kit provides the Heavy Duty durability needed for a complete, worry-free installation.\u003c\/p\u003e\n\u003ch3\u003eTop Features: Hot Rods K021 Main Crankshaft Bearing and Seal Kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Bearings:\u003c\/strong\u003e Includes high-quality, high-speed main crankshaft ball bearings for reduced friction and maximum life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Seal Set:\u003c\/strong\u003e Comes with precision-molded crank seals to ensure a perfect, leak-proof seal during reassembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngineered Compatibility:\u003c\/strong\u003e Specifically designed to work seamlessly with Hot Rods or OEM crankshaft assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePro-Grade Durability:\u003c\/strong\u003e Built to handle the rigorous demands of motocross and off-road racing environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConvenient All-In-One Kit:\u003c\/strong\u003e Eliminates the guesswork by providing the essential main bearings and seals in one package.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment List\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eVehicle Brand\u003c\/th\u003e\n\u003cth\u003eVehicle Model \u0026amp; Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2024\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ250F \/ WR250F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2024\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ250FX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2015\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eWR250R \/ WR250X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this kit compatible with my stock Yamaha crankshaft?\u003c\/strong\u003e\u003cbr\u003eYes, while these are the perfect complement to a Hot Rods crank, they are designed to meet OEM specifications and work perfectly with your stock crankshaft.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this kit include every seal for the entire engine?\u003c\/strong\u003e\u003cbr\u003eNo, this specific kit (K021) focuses on the critical main crankshaft bearings and the two primary crank seals. For a full engine gasket set, check our other listings at Moto-House MX.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy should I replace my seals when replacing bearings?\u003c\/strong\u003e\u003cbr\u003eMain seals are a wear item; installing fresh seals alongside new bearings ensures you maintain proper primary compression and prevents oil contamination or air leaks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUpgrade Your Ride\u003c\/strong\u003e at Moto-House MX today and build your engine with parts you can trust!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – is located in Clermont\/Montverde, FL. The best motocross shop in Central Florida.\u003c\/p\u003e","brand":"HOT RODS","offers":[{"title":"Default Title","offer_id":44174213447763,"sku":"K021","price":105.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/79317.png?v=1772933149","url":"https:\/\/motohousemx.com\/products\/hot-rods-k021-crank-bearing-seal-kit-01-24-yamaha-yz250f-yz250fx-yz450f","provider":"Moto-House MX","version":"1.0","type":"link"}