Description
Sterndrive Alpha One Generation I Upper 1.47
This unit is a Replacement for OE#: 9412A20 Mercruiser’s R/MR/Alpha One I/O 1972-1990
Mercruiser sterndrive 228 HP and up from 1974-1990.
Mercruiser sterndrive 225-S 1974
Mercruiser sterndrive 233 1975-1977
Mercruiser sterndrive 250 1977
Mercruiser sterndrive 260 1978-1982
Mercruiser sterndrive 898/228 1977-1982
Mercruiser sterndrive R/MR/Alpha One 1983-1990
Mercruiser sterndrive engine from 1983-1990 include 5.7L, 5.0L (4 barrel carb)
Mercruiser sterndrive engine from 1983-1990 include 350, 305 (4 barrel carb)
Mercruiser sterndrive engine horsepower 260 HP, 230 HP, 228 HP
Comes with a 9-9/16 new style input yoke
