Shop by Brand Yamaha OutboardGasket/Gasket Kit Back Gasket, Upper Casing 66T-45113-A0 Viewer:1266 OEM No.: 66T-45113-A0 For YAMAHA outboard 40 HP You May Also Be Interested In Gasket 90430-14115-00 Gasket 6J8-14984-00-00 Piston Ring 12140-96350-025 0.25 Piston Kit 777-815965A6/815965A 6 0.030