Wiseco 03-05 Yamaha YZ/WR450F 12.5:1 (4785M09700) Piston Kit

Premium materials produce the best sealing technology available exceeding O.E.M. standards. Dedicated forging. Superior strength/weight ratio utilizing Aerospace alloy.

This Part Fits:

Year	Make	Model	Submodel
2003-2006	Yamaha	WR450F	Base
2003-2005	Yamaha	YZ450F	Base