Shop by Brand Yamaha OutboardGasket/Gasket Kit Back Gasket, Upper Casing 66T-45114-A0 Viewer:860 OEM No.: 66T-45114-A0 For YAMAHA outboard 40 HP You May Also Be Interested In Gasket, Oil Pan 67C-15312-00-00 Gasket, Cylinder Head 6G5-11181-A2-00 Piston Ring 6H4-11610-20-00 0.50 Anode 676-11325-00-00