Products PWC- Yamaha500 CC Back Gasket - Silencer 6K8-14755-00 Item number: 6K8-14755-00 Fit on models: 1990 Yamaha WAVE RUNNER - WR500D EXHAUST 1 You May Also Be Interested In Piston 6K8-11631-00 / 6K8-11635-00 / 6K8-11636-00 Gasket - Muffler Damper 6K8-14749-00 Piston Kit 09-692-01 Piston Kit 09-777