Retainer Nut, MR Alpha & Gen II

Retainer Nut. For Mercruiser Stern Drive, Mercury Marine, and Chrysler/Force/US Marine. Fits: MR Alpha & Gen II. Premium Quality For Longer Life. Meets or exceeds manufacturer's recommended specifications. Backed by Sierra's limited lifetime warranty. Fits: MR Alpha & Gen II Premium Quality For Longer Life Meets or exceeds manufacturer's recommended specifications Backed by Sierra's limited lifetime warranty