Sierra Gimbal Bearing - Mercruiser - S18-21005. Replaces: 30-862540A3, 30-862540T1, 30-862540A04, 30-879194A01. Greasable Fits: All Bravos, Alpha One Gen II (1998-up) Part...

Sierra Gimbal Bearing - Mercruiser - S18-21001. Replaces: 30-60794A2, 30-60794A4, 30-879194A02 Non Greasable Fits: MC-1, R, MR and Alpha(1974-97), Gen II(1991-97), Bravo I/II/III...

Sierra Gimbal Bearing - Mercruiser - S18-21006. Non Greasable Replaces: 30-862540T1, 30-862540A3, 30-862540A04, 30-879194A01 Fits: Gen II (1998-10), Bravo I/II/III & X/XR/XZ...

Sierra Seal & Gimbal Bearing Kit - Mercruiser - S18-21005K. Replaces: 30-862540A3, 30-862540T1, 30-862540A04, 30-879194A01 Greasable. Contains (1) each of S18-2094 & S18-21005 Fits: Gen II...

Sierra Seal & Gimbal Bearing Kit - Mercruiser - S18-2100K. Replaces: 30-60794A2, 30-60794A4, 30-879194A02 Greasable. Contains (1) each of S18-2094 & S18-2100 Fits: 1, R, MR and Alpha...

Sierra Swivel Gimbal Ring Shaft - Mercruiser - S18-73131. Replaces: 98230A1 Fits: Mercruiser Alpha/Gen II/Bravo I/II/III & Vazer Part Number SRA-S18-73131

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...