{"product_id":"hot-rods-4049-crankshaft-assembly-yamaha-yz250f-moto-house-mx","title":"Hot Rods Crankshaft Assembly 4049 — Yamaha YZ250F 2003-2013","description":"\u003ch1\u003e\u003cstrong\u003eHot Rods Crankshaft Assembly 4049 — Yamaha YZ250F 2003-2013\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eBring your high-revving engine back to life with the \u003cstrong\u003eHot Rods 4049 Crankshaft Assembly\u003c\/strong\u003e. Designed specifically for the long-running 2003-2013 Yamaha YZ250F, this heavy-duty assembly is built to withstand the demanding conditions of off-road racing and aggressive riding, providing a solid foundation for your next top-and-bottom-end rebuild.\u003c\/p\u003e\n\u003cp\u003eForged from premium \u003cstrong\u003e4140 steel\u003c\/strong\u003e, this crankshaft assembly comes completely ready for installation. It is factory assembled and balanced to match or exceed OEM specifications for flawless performance and durability. Each unit is delivered complete with proven Hot Rods connecting rods and top-end bearings, with integrated gears constructed to a highly durable DIN class 9 or higher standard. Designed with longevity in mind, this crank is also completely rebuildable down the road using genuine Hot Rods components.\u003c\/p\u003e\n\u003ch3\u003eTop Features: Hot Rods Crankshaft Assembly\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSold complete with trusted Hot Rods connecting rods and top-end bearings\u003c\/li\u003e\n\u003cli\u003eFactory assembled and balanced to meet or exceed OEM specifications\u003c\/li\u003e\n\u003cli\u003eManufactured from heavy-duty 4140 steel for maximum strength and impact resistance\u003c\/li\u003e\n\u003cli\u003eGears engineered to a quality level of DIN class 9 or higher\u003c\/li\u003e\n\u003cli\u003eCompletely rebuildable for extended lifecycle and reliability\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 style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; margin-top: 15px; margin-bottom: 15px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eYear Range\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Brand\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2003-2013\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eYamaha\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eYZ250F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this crankshaft assembly come balanced out of the box?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Every Hot Rods crankshaft assembly is factory assembled and trued to OEM tolerances. You do not need to take it to a machine shop for balancing or alignment prior to installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I know if my old crankshaft needs to be replaced?\u003c\/strong\u003e\u003cbr\u003eA: If you detect vertical play in the connecting rod big-end bearing, see scoring on the crank webs, or find that the rod side clearance exceeds the service limit in your Yamaha manual, it is time for a new assembly.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e When splitting your engine cases to drop in this new crankshaft, always inspect your oil pump rotors. A worn-out oil pump will fail to deliver adequate pressure to the new rod bearing, resulting in premature crankshaft failure. Replacing the oil pump assembly is cheap insurance during a major overhaul.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-yz250f-yz250fx-performance-parts-and-accessories\"\u003eYamaha YZ250F Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eYamaha 4-Stroke Performance Parts\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003eAssembly Lube, Premium Cleaners, \u0026amp; 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\u003cp\u003e \u003c\/p\u003e","brand":"Hot Rods","offers":[{"title":"Default Title","offer_id":40562200608851,"sku":"4049","price":465.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/hot-rods-oem-replacement-crankshaft-4049-2003-2013-yamaha-yz250f-474601.jpg?v=1735344481","url":"https:\/\/motohousemx.com\/products\/hot-rods-4049-crankshaft-assembly-yamaha-yz250f-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}