Complete replacement sterndrive.

Replace Mercruiser Alpha One GEN I with 1.62/1.65 ratio.

Model R,MR & Alpha One GEN II sterndrive built from 1972-1990.

Counter Rotation sterndrive

Used on following models:

Replace Mercruiser sterndrives Alpha One GEN I 205 HP from 1983-1990.
Replace Mercruiser sterndrive R/MR/Alpha One 1983-1990.
Replace Mercruiser sterndrive Alpha One GEN I 5.0L 1983-1990 (2 barrels carburetor).
Replace Mercruiser sterndrive GEN I withr 305 cu engine from 1983-1990  (2 barrels carburetor).

Drive shaft 9 9/16''.

Installation kits and anode not include.

Installation kit: SM-90-106-03K.

Sterndrive Engineering Autorized Dealer

Anode Kit: SM-90-106-05K.