MerCruiser Alpha One 43-75325A3 Gen II 1991-1997 Upper Gearcase Gear set 4.3L V6
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- Found in MerCruiser Gen II upper gearcases for 4.3L V6 205hp / 175hp Engines 1991-1997
- (Actually these were also used on Gen II drives 1991-1997)
- The gear set here is 43-75325A3 (Sierra equivalent 18-2204)
- 17-19 (tooth count) 1.84 Ratio for 4-cylinder GM Chevy 4.3L 262CID V6 175hp & 205hp sterndrive engines.
- If you have any questions on compatibility, or any other questions about this item, please don't hesitate to contact me.
- Freshwater Used Parts.
- These look great and were removed from a completely functional upper gearcase.
- The bearings are still on this and should be ok yet, but for piece of mind I would recommend you should replace them, but this is completely up to your discretion...
- Purchase with confidence!
Notable Part Numbers included
- 43-75325A3 Gearset >>>> (43-853643 (17-tooth) & 43-821824 (19-tooth))
- 45-55796 1 Driveshaft
- and other parts as pictured...
1970 1971 1972 1973 1974 1975 1976 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990