YZ450F / WR450F Top End Rebuild Kit

Includes:

95mm Stock Bore Nikasil Cylinder (1 year warranty*)

95mm Wiseco or Wossner forged piston kit (includes piston rings, wrist pin, and circlips)

Top end gasket kit with MLS head gasket

Perfect for pump gas or race gas

Works on all ’03-05 YZ450F and ’03-06 WR450F models

1 year warranty on complete kit for your piece of mind*

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