MerCruiser 4cyl 470 170 170hp 3.7L Rocker Valve Cover 41638A1 41637 1983-1986 Trim Parts ​​​​​​​Seemingly there are multiple part

​​​​​​​Seemingly there are multiple part numbers of motors that this is mentioned

0L 1963-1989

but the flanges all look pretty clean yet

13 (once you install the proper #206 XHS hub kit)

Stern Bracket Starboard: 319788

MerCruiser 4cyl 470 170 170hp 3.7L Rocker Valve Cover 41638A1 41637 1983-1986 Trim Parts ​​​​​​​Seemingly there are multiple partItem Details Removed from a 1983 1984 MerCruiser "470" (170hp) 3. 7L 4cyl 2BBL (SN 6890474) Overall Good Condition, original paint Parts Included MerCruiser Cylinder Head Valve Rocker Cover 41638A1 (Stamped 41637) This particular one was only used on 2bbl models as well as the 4bbl models with the 98348 C1 intake manifolds as these had the provision on the top for a stud for the 4BBL carburetors The 488 models had a different valve cover, but could be