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Wiseco JE Wossner or CP Carrillo forged pistons**
Year: 1994 Part: BEARING Part Group: CRANKCASE COVER 1
Upgrade today to experience improved power delivery and a smoother ride
2155" Note These guides are compatible with both KPMI® seals and the OEM tophat Seal
12191-KCY-671
YFZ450 Big Bore Stroker Kit Oil Pump Mod Rebuild 500cc Complete Engine Motor Kit 4100-1 Wiseco JE Wossner or CPFITS ALL YAMAHA YFZ450 CARB MODEL YEARS AND MODELS! 98mm big bore cylinder Wiseco or Wossner 98mm big bore forged piston** Hi temp piston rings Chrome Wristpin Circlips Hotrods +3mm stroker crank with rod** Main bearings Transmission bearings Shift cam bearing Crank balancer bearings Water pump bearing Clutch arm and thrust needle bearings 07+ After market oil pump Oil pump rotor set Oil squirter with o ring K&N oil filter NGK spark plug Complete