Mercury Outboard 50hp 500 57244A4 Upper Shift Shaft 70s Long Shaft 21" 18hp Your's should look the same

Your's should look the same

but still is interchangeable

(Before they switched to the solid tubular one)

MerCruiser 185hp (2bbl) / 205hp (4bbl)

This supersedes / is related to CRU97901 & CRU97900

Mercury Outboard 50hp 500 57244A4 Upper Shift Shaft 70s Long Shaft 21" 18hp Your's should look the sameCame off a Mercury 50hp 500 1970 1976 with Serial# 3820730 4cylinder cyl. 2 Stroke Vintage Kiekhaefer Item Condition and Notes: Good working Condition Slight bend on the shaft, but nothing that should inhibit function (you can kind of see it in the last picture when it is up against the tape measure) Please Inspect Pictures for condition Freshwater Part 21 1 4" Part #'s Upper Shift Shaft Assembly: 57244A 4 Yours should look like this one. Please ask