Shop by Brand Mercury OutboardGasket/Gasket Kit Back Powerhead Gasket Kit 27-850396A1 Viewer:63 OEM No.: 27-815791A00 / 500-221 For Mercury Outboard 175 HP You May Also Be Interested In Gasket 27-43006-8/43006 8 Gasket 27-8129395/812939 5 Piston Kit 435547/0435547 STD Outer Plate, Cartridge 6G1-44323-00-00