This item is a direct replacement for the Mercury/Mariner 1-cyl, 3.9-4.5 Hp | 2-cyl, 6-40 Hp | 3-cyl, 65 Hp | 4-cyl, 45-65 Hp | 6-cyl, 70-150 Hp outboard carburetors from 1967 to 1988. This gasket set includes the seals, piston rings, clips, and gaskets...