{"product_id":"hot-rods-4034-crankshaft-assembly-yamaha-yz85-moto-house-mx","title":"Hot Rods Crankshaft Assembly 4034 — Yamaha YZ85 2002-2018","description":"\u003ch1\u003e\u003cstrong\u003eHot Rods Crankshaft Assembly 4034 — Yamaha YZ85 2002-2018\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eHot Rods 4034 Crankshaft Assembly\u003c\/strong\u003e is the gold standard for riders looking to restore factory performance or build a reliable high-revving engine for their Yamaha YZ85. Engineered to meet or exceed OEM specifications, this assembly provides the durability and precision necessary for demanding off-road conditions.\u003c\/p\u003e\n\u003cp\u003eEvery assembly comes \u003cstrong\u003efactory-trued and ready for installation\u003c\/strong\u003e, saving you the time and expense of balancing. Built using high-strength 4140 steel and featuring DIN class 9 quality gears, this crankshaft offers superior resistance to wear and fatigue, ensuring your YZ85 maintains its peak power output throughout the entire race season.\u003c\/p\u003e\n\u003ch3\u003eTop Features: Hot Rods Crankshaft Assembly\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eComplete assembly featuring proven Hot Rods connecting rods and top-end bearings.\u003c\/li\u003e\n\u003cli\u003eFactory assembled and trued to exact OEM specifications for a direct drop-in fit.\u003c\/li\u003e\n\u003cli\u003eConstructed from durable 4140 steel with high-precision DIN class 9 gears.\u003c\/li\u003e\n\u003cli\u003eFully rebuildable design allows for long-term maintenance using genuine Hot Rods components.\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;\"\u003e2002-2018\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;\"\u003eYZ85\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 come with the main bearings?\u003c\/strong\u003e\u003cbr\u003eA: No, this is a complete crankshaft assembly. You will need to purchase your main crank bearings and engine seals separately for a complete bottom-end rebuild.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this a stroker crank or a stock replacement?\u003c\/strong\u003e\u003cbr\u003eA: This is an OEM stroke crankshaft, designed to match the original factory displacement and power characteristics of your YZ85.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e When installing a new crankshaft, always replace your main bearings and seals as a set. Never force the crank into the cases using a hammer; use a proper crankshaft installation tool to pull the crank into the bearings. This prevents side-loading the bearings and ensures the crank spins perfectly true from the first start-up.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-yz85-performance-parts-and-accessories-moto-house-mx\"\u003eYamaha YZ85 Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003cbr\u003eo \u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003ePremium Motorcycle Chemicals \u0026amp; Assembly Lubes\u003c\/a\u003e\u003cbr\u003eo \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\u003c\/p\u003e\n\u003ch2\u003eAbout Moto-House MX\u003c\/h2\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":40562249498707,"sku":"4034","price":265.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/hot-rods-oem-replacement-crankshaft-4034-2002-2018-yamaha-yz85-323316.jpg?v=1735344477","url":"https:\/\/motohousemx.com\/products\/hot-rods-4034-crankshaft-assembly-yamaha-yz85-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}