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14721-KRN-670
this kit includes everything needed for a complete top end rebuild
and we always strongly recommend parts be installed by a qualified
Complete Engine Rebuild Kit for 2009-2013 Yamaha YFZ450R – Ultimate Top & Bottom Motor Assembly by BPRATV
Yamaha YFZ450 YFZ 450 Stock Bore Engine Rebuild Kit Wiseco Crank Piston Cylinder YZ250FX 14721-KRN-670Yamaha YFZ450 Engine Rebuild Kit Wiseco Crank Piston Stock Bore 2004 2013 Yamaha YFZ450 Stock Bore Engine Rebuild Kit Wiseco Crank, Piston & Cylinder Complete Bottom End & Top End Rebuild Solution Restore factory power and long term reliability with the BPRATV Wiseco Cometic Yamaha YFZ450 Engine Rebuild Kit, featuring premium components from Wiseco, Cometic, NTN, Koyo, and BPRATV. This kit is engineered for riders who demand OEM level fitment with