Feature●This prop service kit replaces OE#: 11-69578Q1 and fits 40-75 hp 2 stroke & 4 stroke Mercury, Mariner, and Force outboard lower units from 1991-current.Description This prop service kit replaces OE#: 11-69578Q1 and fits 40-75 hp 2 stroke & 4 stroke Mercury, Mariner, and Force outboard lower units from 1991-current.