MerCruiser 97432A2 97431S 470 3.7L Engine Coupler Assembly 170hp 4cyl 1983-89 3hp certain 470 models) on MerCruiser

certain 470 models) on MerCruiser R / MR / Alpha One Gen I & II Sterndrives  from 1983-1998

the best practice is to just match your existing casting numbers

The Part Number of misc

This manifold was used on basically all OMC Cobra & Stringer 4

1955 1956 19571958

MerCruiser 97432A2 97431S 470 3.7L Engine Coupler Assembly 170hp 4cyl 1983-89 3hp certain 470 models) on MerCruiserItem Details MerCruiser 97432A2 (97431 S Stamped) Coupler Assembly Used with 1983 1989 MerCruiser 470 170hp 165hp 188hp 190hp 3. 7L 4cyl Models 2bbl & 4bbl. Splines are nearly perfect on this. Some cracking on the face of the rubber but it should only be cosmetic as the back side of the rubber looks very healthy and this condition is pretty standard for all of these that we remove. Make sure your coupler looks similar to this and is not the style that