Shop by Brand Yamaha OutboardGasket/Gasket Kit Back Gasket, Valve Seat 6F5-13621-00-00/6F5-13621-A0-00 Viewer:681 OEM No.: 6F5-13621-00-00/6F5-13621-A0-00 For YAMAHA outboard 40 HP You May Also Be Interested In Gasket 662-14198-00 Gasket, Exhaust Inner Cover 682-41112-00-00/682-41112-A1-00 Pawl, Drive 663-15741-01-00/663-15741-02-00 Gear 694-45570-00(23T)