Sierra Impeller Repair Kit - Mercruiser - S18-3237. For: Bravo I, II, III (1988 & up) B664190 & up Fits Bravo drives with 1 piece housing Contains: Sierra CodeDescriptionO.E...

Sierra Alternator - Mercruiser - S18-5983. Replaces: 862030T, SAE J1171 7SI/70 amp, Hinge Mount, Single Groove Pulley Part Number SRA-S18-5983

Sierra Starter - Mercruiser - S18-6946. Replaces: 50-8m8021116 Fits: High Performance 11 Tooth Starter for 6.2L & 8.9L Scorpion HO applications Part Number SRA-S18-6946

Sierra Alternator - Mercruiser - S18-6298. Replaces: 863077T, SAE J1171 7SI/70 amp, Hinge Mount, Serpentine Pulley 1.97” Diameter Part Number SRA-S18-6298

Sierra Alternator - Mercruiser - S18-5945. (3-Wire) (No Core) (68 AMP), SAE J1171 Replaces Mando, Motorola and original equipment Delco. Uses same electrical connections and mounting method...

Sierra Thermostat - Mercruiser - S18-3649. Replaces: 8072522, 807252T2, 8052732, 8M0091470 160° Part Number SRA-S18-3649

Sierra Starter - Mercruiser - S18-5907 (Heavy-Duty) (No Core) (Clockwise) (9 tooth) Top mount rear entry starter for opposite rotation GM & Ford engines. Will also replace bottom mount standard...

Sierra Starter - Mercruiser - S18-5908 (Heavy-Duty) (No Core) (Counter-Clockwise) (9 tooth) Top mount rear entry starter for standard rotation GM & Ford engines. Front mount reverse rotation...

Sierra Elbow - Mercruiser - S18-1973. Replaces: 39920, 39920A1, 55538A2 Barr MC-20-55538 Fits: Most early Model 120 HP Mercruiser applications Part...