Sierra 18-2751 MerCruiser Alpha One Gen I U-Joint Bellows Replaces 60932A4 This Sierra u-joint bellows is designed for use with MerCruiser Alpha One Gen I drives. Application Info Fits MerCruiser Alpha One Gen I drives from 1983-1991 with serial numbers 06225577 thru 0D469858 Interchangeable with GLM 89050 Mallory 9-72701 Mercruiser Stern Drive 60932A1 60932A4 California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Details Product MPN 18-2751 Google Product Type Engi