Best YFZ450R YFZ 450R Top End Rebuild Kit Stock Standard Bore Upper Assembly Kit Grizzly 450 and more resistant to heat

and more resistant to heat and corrosion

Returns: Please check your order completely right when you receive it and let us know immediately if there is an issue

This complete kit provides all new critical engine components to refresh your top end

Pump cover O-ring included for complete installation

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Best YFZ450R YFZ 450R Top End Rebuild Kit Stock Standard Bore Upper Assembly Kit Grizzly 450 and more resistant to heatWorks on all Yamaha YFZ450R models and years Stock bore heavy duty cylinder Wiseco, Wossner, CP or JE forged piston* Chrome wrist pin Nitrite coated piston rings Circlips Top end gasket kit MLS head gasket Cam timing chain Talon TITANIUM cylinder head stud kit LIFETIME WARRANTY** Runs on pump or race gas All new parts 1 year warranty**