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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
The internals are the same
150-235hp (150hp 155hp 185hp 235hp possibly others)
5L 153CID / 140hp 3
Used from 1979-1986 on most OMC GM V6 & V8 engines with 2bbl Rochester Carburetor (3" opening) Also used on some (V6 3
MerCruiser 45-853647 Alpha One Driveshaft Gen II Lower Gearcase 3.0L 4.3L 1998Up Brackets Braces Levers Linkages The internals are the sameItem Details MerCruiser Lower Unit Drive Shaft 45 853647 used in all MerCruiser Gen II Sterndrive gearcases 1998 & UP (1. 81: 1 1. 94: 1 2. 00: 1 2. 40: 1) Ratio (which is 3. 0L & 4. 3L) Basically the difference between 45 853648 & 45 853647 is that the 45 853648 was the "heavy duty" version of 45 853648. Dimensionally they were the same otherwise, and the 1998 & up gearcases used a different bearing & retainer on the shaft. This will also replace 45