The Sierra 18-3703 Prop Nut is interchangeable with the following: Chrysler 11-88228, GLM 21242, Mallory 9-73963, Mercury 11-88228. Each Sierra product meets or exceeds the original equipment part it replaces. A special molded nylon popnut fitting the 18/20/25 HP 2 Cycle 1980 and newer. Also fitting the F9.9/15, 323cc Bigfoot 4-stroke.
Sierra Prop Nut
Meets or exceeds the original equipment quality
High quality molded nylon
Fitting the 18/20/25 Hp 2 cycle 1980 & newer
Sierra Prop Nut
Meets or exceeds the original equipment quality
High quality molded nylon
Fitting the 18/20/25 Hp 2 cycle 1980 & newer