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4835M09800
5:1 piston is specifically designed for use with *race gas* to achieve peak performance and prevent detonation
This 421cc kit is drop-in and bolt-on ready
This kit includes an authentic German-made Wossner forged piston
YFZ450 YFZ 450 Engine Rebuild Kit Wiseco Crank CP Carrillo Piston Cometic Gasket PSR8801A Feel free to callRestore reliability and power with this Yamaha YFZ450 stock bore engine rebuild kit using a CP Carrillo forged piston, Wiseco heavy duty crankshaft, and complete bottom end components. Yamaha YFZ450 Stock Bore Engine Rebuild Kit Wiseco Crank, CP Piston & Cylinder Complete Bottom End & Top End Rebuild Solution Restore factory power and long term reliability with the BPRATV Wiseco CP Carrillo Cometic Yamaha YFZ450 Engine Rebuild Kit, featuring premium