Shop by Brand Yamaha OutboardGasket/Gasket Kit Back Gasket 66T-14959-00 Viewer:864 OEM No.: 66T-14959-00 For YAMAHA outboard 40 HP You May Also Be Interested In Powerhead Gasket Kit 65W-W0001-02-00 Gasket, Head Cover 63D-11193-A0-00 Piston Kit 682-11636-00 0.50 Gasket, Drive Shaft Housing 3AB-61012-0/3AB610120M