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 - Exhaust Pipe 66E-14613-00 Gasket - Cylinder Head 61X-11181-A0 / 61X-11181-A1 Full Gasket Kit 09-711310 Piston KIT 09-776-02