I just bought this off ebay. Apparently, that oldtimers disease is starting to hit because I was looking for an under-dash, and the ad clearly stated under-hood.
Anyway, this is what was written in the ad: "This was removed from my 1989 Jeep wrangler YJ that has a 4.2L 6 cylinder engine and an 5 speed transmission. Harness is in nice condition. No melted or cut wires."
I looked it over, and it looks like the wiring harness in my 87 YJ. Of course I didn't test it or anything because the wiring harness I have works great.
Part is located in Mena, AR. Asking $40, shipped anywhere in the US.