YFZ450R / YFZ450X Complete Engine Rebuild Kit – OEM Crankcases + Stock Bore
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YFZ450R / YFZ450X Complete Engine Rebuild Kit – OEM Crankcases + Stock Bore

$1,999.00
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Fits All Yamaha YFZ450R & YFZ450X Models (2009–2019)Everything you need to fully rebuild your YFZ450R or YFZ450X motor—featuring brand new OEM crankcases, a forged piston, and a complete matched rotating assembly. Built for racers and riders who want a fresh start with OEM-quality components. ✅ What’s Included Brand new OEM crankcases New aftermarket stock bore cylinder Wiseco forged piston + hi-temp rings Chrome wrist pin & circlips Hotrods or Wiseco crankshaft with connecting rod Main, transmission, shift cam, and crank balancer bearings Clutch arm & water pump bearings Full top & bottom end gasket kit (MLS head gasket included) Crankcase oil seal kit + valve stem seals Water pump shaft, mechanical seal, and impeller Brand new oil pump K&N oil filter + NGK spark plug Timing chain + complete clutch kit DuneGoonShop stickers included All parts are brand new – Runs on pump or race gas 🔧 Built for Performance OEM-Quality Foundati

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