FITS ALL HONDA TRX400EX, 400X MODELS AND YEARS

Genuine BPR aftermarket cylinder headCylinder head valve cover87mm cylinderWiseco or Wossner 87mm big bore forged piston**Nitrite-coated piston ringsChrome wrist pinCirclipsTop-end gasket kitCometic big bore MLS head gasketKibblewhite Viton valve stem sealsMaxlok TITANIUM head stud kit – LIFETIME WARRANTY*Cam chainSpark plugPrecision machined to exact tolerancesAll parts are brand new1-year warranty*