{"product_id":"hot-rods-4050-crankshaft-assembly-yamaha-yz450f-moto-house-mx","title":"Hot Rods Crankshaft Assembly 4050 — Yamaha YZ450F 2003-2005","description":"\u003ch1\u003e\u003cstrong\u003eHot Rods Crankshaft Assembly 4050 — Yamaha YZ450F 2003-2005\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eRestore your machine’s power with the \u003cstrong\u003eHot Rods 4050 Crankshaft Assembly\u003c\/strong\u003e. Specifically engineered for the 2003-2005 Yamaha YZ450F, this heavy-duty assembly is designed to provide reliable, factory-level performance for your engine rebuild. It arrives fully assembled and factory-trued, allowing you to get your bike back on the track with minimal downtime.\u003c\/p\u003e\n\u003cp\u003eBuilt from premium \u003cstrong\u003e4140 steel\u003c\/strong\u003e, this crankshaft is designed to meet or exceed OEM specifications for durability. The assembly includes proven Hot Rods connecting rods, top-end bearings, and webs, with gears manufactured to DIN class 9 or higher for maximum strength. Because the unit is completely rebuildable using genuine Hot Rods components, it serves as a long-term investment in your engine’s performance.\u003c\/p\u003e\n\u003ch3\u003eTop Features: Hot Rods Crankshaft Assembly\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSold complete with proven Hot Rods connecting rods and top-end bearings\u003c\/li\u003e\n\u003cli\u003eFactory assembled and trued to meet or exceed OEM specifications\u003c\/li\u003e\n\u003cli\u003eHeavy-duty 4140 steel construction for enhanced durability\u003c\/li\u003e\n\u003cli\u003eGears manufactured to DIN class 9 quality level or higher\u003c\/li\u003e\n\u003cli\u003eComplete, pre-balanced, and ready for immediate installation\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;\"\u003e2003-2005\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;\"\u003eYZ450F\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: Why is a complete assembly better than just replacing the rod?\u003c\/strong\u003e\u003cbr\u003eA: A complete assembly ensures that the crank webs are perfectly aligned and trued at the factory. This eliminates the vibration and bearing stress often caused by improper manual press-work during a rod replacement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this crankshaft come with all necessary bearings?\u003c\/strong\u003e\u003cbr\u003eA: Yes, this assembly includes the necessary top-end bearings and is ready to install, saving you the time and expense of sourcing individual components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e When replacing your crankshaft on these early YZ450F models, always ensure your engine cases are perfectly clean. Any debris left in the oil gallery from the previous failure will destroy your new main bearings within minutes of starting the engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-yz450f-performance-upgrades-engine-mods-and-accessories-moto-house-mx\"\u003eYamaha YZ450F 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 \u0026amp; Premium Engine Oil\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":40562191237203,"sku":"4050","price":490.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/hot-rods-oem-replacement-crankshaft-4050-2003-2005-yamaha-yz450f-367417.jpg?v=1735344472","url":"https:\/\/motohousemx.com\/products\/hot-rods-4050-crankshaft-assembly-yamaha-yz450f-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}