MerCruiser 94998A4 94997 Alpha One R/MR/Gen1 1983-1990 Outdrive Upper Unit Cover Thermostat Housing Parts OMC 174179 / 0174179 Inlet

OMC 174179 / 0174179 Inlet Elbow (90 Degree)

Whole set as pictured

The compatibility noted above is a very well-educated guess using online resources as to what this item is compatible with

-For 7 / 8” 13-spline prop shaft

but the jet is different

MerCruiser 94998A4 94997 Alpha One R/MR/Gen1 1983-1990 Outdrive Upper Unit Cover Thermostat Housing Parts OMC 174179 / 0174179 InletItem Description MerCruiser 94998A4 94997 (stamped) 1. 939 CUP dimension (standard diameter of bearing cup diameter of seat where cup sits) Includes Screws 10 98794 (3 8 16 x 1") Compatibility MerCruiser Sterndrive Units manufactured between 1983 1990 (R MR Gen I) This is the type of cap that does not have a Lifting ring. They made quite a few different style of top caps, so please look and compare the pictures closely to yours to make sure that this