Sierra Knock Sensor - Mercruiser - S18-7553. Replaces: 808015T Fits: Mercury 5.7L MAG 1998-2010 Part Number SRA-S18-7553

Sierra Map Sensor - Mercruiser - S18-7551. Replaces: 861425 Fits: Mercury Scorpion, Black Scorpion 1998-2010 Part Number SRA-S18-7551

Sierra Map Sensor - Mercruiser - S18-7660. Replaces: 881731, 8M0054726 V-6 & V-8 MPI engines with 555 ECM Part Number SRA-S18-7660

Sierra Knock Sensor - Mercruiser - S18-7554. Replaces: 878187 Fits: Mercury 5.7L MAG 1994-2010 Part Number SRA-S18-7554

Sierra Crankshaft Sensor - Mercruiser - S18-7556. Replaces: 864297001 Fits: Mercury 5.0L, 6.2L 1998-2010 Part Number SRA-S18-7556

Sierra Ignition Sensor Kit - Mercruiser - S18-5116-1. Replaces: 87-861780A2, Q4, 87-892150A02 For: V-6 & V-8 with Thunderbolt ignition (1981-1997) nut connectors Part...

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...