I just bought my first boat. It's a 1976 Fiberform with a 120 hp Mercruiser. The guy I bought it from threw in a brand new never used prop along with a bunch of other boat stuff but the prop doesn't fit the Mercruiser and he doesn't know what it fits. The prop is a 13 spline, 3-blade, aluminum, 13 3/4 diameter x 15 pitch and it has the numbers 391198 stamped on the hub. Any way to tell what it will fit. I'd like to try to sell it if I could find out what it fits.
