Shop by Brand Mercury OutboardGasket/Gasket Kit Back Gasket Kit 27-78028A78 Viewer:124 OEM No.: 27-78028A78 For Mercury outboard 35, 40 HP You May Also Be Interested In Powerhead Gasket Kit 27-815810A90 Gasket, Drive Shaft Housing 27-43337-4/43337 4 Bracket, Swivel 682-43311-06-4D/682-43311-07-4D Bearing 3C8-00113-0/3C8001130M