Shop by Brand Yamaha OutboardGasket/Gasket Kit Back Lower Unit Gasket Kit 66T-W0001-20 Viewer:790 OEM No.: 66T-W0001-20 For YAMAHA outboard 40 HP You May Also Be Interested In Lower Unit Gasket Kit 6E5-W0001-51-00/6E5-W0001-F1-00 Gasket, Upper Casing 688-45113-A0-00 Spacer 688-45987-01-00/688-45987-02-00 Starter Solenoid 586774/0586774