Shop by Brand Yamaha OutboardGasket/Gasket Kit Back Power Head Gasket Kit 66T-W0001-00/66T-W0001-01 Viewer:1333 OEM No.: 66T-W0001-00/66T-W0001-01 For YAMAHA outboard 40 HP You May Also Be Interested In Power Head Gasket Kit 6G5-W0001-A3-00 Gasket, Air Cleaner 6G5-14416-00-00 Housing Bearing 6G1-45331-01-5B Piston Kit 676-11635-00 0.25