Mercruiser 8.1L 496cu MAG H.O. V8 GM Parts

496 MAG H.O. 0M025000 to 0M687143

496 MAG H.O. 0M687144 to 0W059999

496 MAG H.O. 0W06000 to 0W309999

496 MAG H.O. 0W31000 to 0W649999

496 MAG H.O. 0W650000 to 1A066165

496 MAG H.O. 1A066166 to 1A350678

496 MAG H.O. 1A350679 & UP