This was from a 3
(This is an earlier variant that does not have a stamped number and a smaller diameter flat face
OMC 327656 / 0327656 Pinion Thrust Washer
Outdrive SternDrive Lower Unit Sea Ray Sea Sprite Ebbtide galaxy OMC Stern Drive 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977
The Part Number of Cylinder Head Cover is F691995
MerCruiser 9412A18 1547-9105 Alpha One Gen 1 Upper Unit Gearcase Housing Empty 75hp This was from a 3Item Description Basically the Upper drive housings are the same no matter what drive engine sterndrive you have from that period of 1983 1990 (I 4, I 6, V8 120hp, 140hp 165hp, 2. 5L, 3. 0L 4. 3L V6 4cyl, 4. 1L 3. 7L 170, 470, 898, 305, 350, etc..) There was a different style of housing from 1983 86ish maybe that was the same internally, but it didn't have the rectangular splash plate. More or less covered in my infographic in the pictures section.