MerCruiser GM 120hp 2.5L 153cid Crankshaft 5743014 OMC Stringer Chevy 4 cyl 2275 Flywheel Housing The vent will be located

The vent will be located in the base and should be obvious if you have this type or not

Coils: 580416

Separator Part: 59825A9 59825C:

1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 5

7L models 1983-1988

MerCruiser GM 120hp 2.5L 153cid Crankshaft 5743014 OMC Stringer Chevy 4 cyl 2275 Flywheel Housing The vent will be locatedItem Details Removed from a 1980 MerCruiser GM 2. 5L Used from 1973 1989 on virtually all OMC & Mercruiser 2. 5L 120hp power plants. (both companies used the same GM blocks, but OMC used bolts rather than studs at the end of the crankshaft to hold the couplers on) MerCruiser Part Number 423 2275 GM part # 5743014 Yours should looks just like this. Engine turned over by hand freely before removed. Some surface rust on this in some areas of the cast