Products PWC- YamahaGasket / O-Ring / Shim Back Gasket - Upper Casing 6K8-45113-00 Item number: 6K8-45113-00 Fit on models: 1989 Yamaha WR500F CRANKSHAFT - PISTON You May Also Be Interested In Gasket - Cylinder Head 66E-11351-00 / 66E-11351-01 / 66E-11351-02 Gasket - Muffler Damper 6M6-14739-00 / 6M6-14739-A1 Piston 13001-3719 Shift Spool 818349T1 / 818349A1 / 818349