The Part Number of Cylinder Head Cover is F691995
(This is an earlier variant that does not have a stamped number and a smaller diameter flat face
0L 305 V8 - GM
MerCruiser 52583A1 Oil Pan Assembly (For 2-piece rear oil seal 4cyl engines)
but may have a different paint color (Silver
MerCruiser 9412A18 1547-9105 Alpha One Gen 1 Upper Unit Gearcase Housing Empty 75hp The Part Number of CylinderItem 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.