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 - Hole Cover 6M6-81365-00 / 6M6-81365-A0 Gasket - Air Cool Cover1 6M6-13674-00 / 6M6-13674-A1 Reed Gasket 09-717270 / 717270 / 5412817 Full Gasket Kit 09-711250