MerCruiser Alpha One Lower Unit Gearcase 3.0L 4.1L 5.0L 5.7L Pre-Alpha 1970-1982 Trim Parts Obvious surface rust

Obvious surface rust

This was used on 1984-1989 Various 40hp-150hp Force Models (and possibly others)

1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004  Possibly others

Mercury 75 7

For the most part it seems these parts were used from 1983-1989 on "470" models that used a 4" Heat exchanger ****(not the smaller 3" model)****

MerCruiser Alpha One Lower Unit Gearcase 3.0L 4.1L 5.0L 5.7L Pre-Alpha 1970-1982 Trim Parts Obvious surface rustItem Details Compatible with all upper alpha one Units (MC 1 R MR Gen 1) from 1970 1991 (the case style is 1970 1982) Regardless of engine (120hp 2. 5L 140hp 3. 0L 165hp 170hp 305 350 470 2. 5L 3. 0L 4. 3L V6 5. 0L 305 5. 7L 350 V8 etc) Shift shaft in great shape All shafts are pretty clean and not rusted up. No leaks or bad seals found after pressure testing. Gear oil will be drained before shipping. No Cracks or Welds Purchase with confidence!