This water separating fuel filter can be used on 40-45hp Jet, 55-60hp 3-cylinder outboards and all MerCruiser sterndrive and inboard engines except 1992 MerCruiser 4.3L Gen II engines equipped with an inline fuel filter and not on 1.6L Vazer and 3.0L MPI engines. Includes replacement filter and rubber gaskets for installation.