Shop by Brand Mercury OutboardGasket/Gasket Kit Back Powerhead Gasket Kit 27-815791A92 Viewer:100 OEM No.:27-815791A92 / 500-228 / 815791A92 For Mercury Outboard Engine You May Also Be Interested In Power Head Gasket Set 27-803663A99/803663A99 Gasket 27-81293910/81293910 Drive Shaft 656-45511-10 Piston Ring 682-11610-10-00/682-11610-11-00 0.25