MerCruiser 50-12177A2 1998570 Delco Remy Marine Starter GM 4.3L V6 V8 5.0L 5.7L Water Pumps and you will either need

and you will either need to replace the wire

you'll have to steal some from your original

307356 / 0307356 Lever

MerCruiser 251-9741A2 / 251-8468A2 Flywheel Assembly

Used from 1989-1990

MerCruiser 50-12177A2 1998570 Delco Remy Marine Starter GM 4.3L V6 V8 5.0L 5.7L Water Pumps and you will either needPart Number(s) Included MerCruiser 50 12177A2 {12"} Starter Motor Assembly (uses 12404 Starter Brace for mounting) Delco Remy 10MT Starter (Direct Drive Style)) Staggered Offset Bolt Pattern Part number 1998570 General Application Compatibility These were generally found on MerCruiser GM V6 4. 3L GM V8 5. 0L 305 GM V8 5. 7L 350 models USING A 14" FLYWHEEL and a 1 piece rear main seal crankshaft Roughly 1987 1992 (before the smaller 8" Gear Reduction