19+ YZ250F YZ 250F Stock Bore Cylinder Piston Complete Top End Rebuild Parts Kit
CW20013K01,CW20013,40229M07700,8100025,B7B-11311-00-00,8957DA,C3695,362953,M1090C
FITS ALL YAMAHA 2019+ YZ250F MODELS
Aftermarket 77mm stock bore cylinder nikasil cylinder
Wiseco, CP Carrillo, JE, or Wossner forged piston kit** (Includes pistons rings, wristpin, and circlips)
Cylinder Bolts / Head stud kit
Vertex, Moose Racing, or Cometic Top End Gasket Kit (MLS Head Gasket)
Viton Valve Stem Seals
Heavy Duty Replacement Timing Cam Chain
This is a bolt on kit with no machining required. Piston uses pump or race gas. Everything is new in the original packaging and the manufacturer's warranties apply***