Shop by Brand Mercury OutboardGasket/Gasket Kit Back Gasket Kit 27-78028A78 Viewer:100 OEM No.: 27-78028A78 For Mercury outboard 35, 40 HP You May Also Be Interested In Powerhead Gasket Kit 27-815791A00 Powerhead Gasket Kit 27-814754A98 Gasket, Body 6E0-24435-00-00 Seal, Labyrinth 61N-11515-00-00