Replaces 17649, 17649T, 891736T\nFor late style Alpha I, Generation II, and Bravo drives; early style square motors. \nMercruiser Sterndrive replacement for Oildyne units
Sierra Water Pump Kit - Mercruiser - S18-3147. Replaces: 817275T4, 817275K05For: Gen II-Lower s/n D469859 and UpFor same kit without upper housing, order S18-3214 Part Number SRA-S18-3147