Shop by Brand Yamaha OutboardGasket/Gasket Kit Back Gasket, Thermostat 677-12414-A1 Viewer:647 OEM No.: 677-12414-A1 Similar Number: YAMAHA No.: 677-12414-A0/677-12414-A1 For YAMAHA outboard 8 HP You May Also Be Interested In Lower Unit Gasket Kit 683-W0001-21-00/683-W0001-C1-00 Gasket 6L2-14399-00-00 Oil Seal 09283-25035-000 Retainer Pinion Assy 66T-81857-00