MerCruiser 43-17064A3 Lower Unit Gear Set Gearcase Alpha One Gen II 1991-95 Dipsticks and Tubes 1983 1984 1985 1986 1987

1983 1984 1985 1986 1987 1988 1989 Alpha One Sterndrive

PLEASE NOTE that this has a 3" Opening (SO

Mercury 250

Similar to the Johnson JW-15  Sea Horse and many others

MerCruiser 43-17064A3 Lower Unit Gear Set Gearcase Alpha One Gen II 1991-95 Dipsticks and Tubes 1983 1984 1985 1986 1987Item Details MerCruiser Sterndrive Alpha One Lower Unit Complete Gear Set 43 17064A3 (17T 28T) (Gears only Pinion, Forward) & Reverse 43 824109A1 This is a A Standard set and NOT a 2. 40: 1 ratio one (which was an extremely rare high altitude conversion) Used in MerCruiser Gen II lower units 1991 1995 regardless of engine. Parts Included Pinion Gear (17 Teeth): 19016 31341 (Same as 43 89060) Forward Gear (28 Teeth): 43 816438 ( Sometimes Stamped 17064