OMC Cobra Exhaust Y-Tube Pipe 4.3L V6 911891 0911891 Sterndrive 170hp 1986-88 Crankshaft but this was pretty common

but this was pretty common on all of these that I have processed & seen because of how they oriented the soldered wires coming off of the tab connections in conjunction with how the wires were typically routed

What I do know is that it took quite a while to count all of them

Generally used 1990-1998

The Part Number of the Connecting Rod 600-818052A 4

DRIVE SHAFT EXTENSION COMPONENTS (M0059-G8) (228 MIE (4 BBL

OMC Cobra Exhaust Y-Tube Pipe 4.3L V6 911891 0911891 Sterndrive 170hp 1986-88 Crankshaft but this was pretty commonItem Details Found on OMC Cobra Sterndrive applications 1986 1988 4. 3L V6 applications, part no 911891. Great Condition, Original Paint, no flappers are installed in this unit, but they still sell the replacement parts for these. Please inspect pictures closely as yours should look just like this. If you are unsure please feel free to ask. Purchase with confidence! 1986 1987 1988 0985768