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ALPHA GM 454 V-8 1986-1988 0A631894 THRU 0B785148
50 50E 55H KG9
1970 1971 1972 1973 1974 Sterndrive Alpha One
but you can really use either as they are still interchangeable
Boat Swim Platform Supports:
MerCruiser 13930A3 Rear Flywheel Housing cover plate 4.3L 5.0L 5.7L V8 305 350 Pulley ALPHA GM 454 V-8 1986-1988Item Details This would have been found on various MerCruiser GM 4. 3L V6 V8 5. 0L 305 V8 5. 7L 350 V8 engines manufactured between 1987 1995. (With 14" Flywheel 1 piece rear main seal & a 12" starter STAMPED TRIANGLE COUPLER) During this time period, there were 2 different types of flywheel covers depending on which type of coupler the engine used, and then a 3rd type for engines using an 8" starter. 13930A3 was used with engines that had a 14"
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