Shop by Brand Mercury OutboardGasket/Gasket Kit Back Gasket Kit 27-78028A78 Viewer:115 OEM No.: 27-78028A78 For Mercury outboard 35, 40 HP You May Also Be Interested In Power Head Gasket Set 27-803508A99/803508A99 Gasket 27-43033-1/43033 1 Cylinder liner Sleeve 11212-94490 Connecting Rod 6G1-11651-00