Sorry for digging up an old thread, I was just going to say thanks in that the search function worked well in getting me the part # for the plastic fitting. Hopefully I can find one tomorrow.
This is on a 94 SSEI (216K), and wouldn't you know it, the only ease-out I couldn't find was the size I needed for this. I can go up to a 1" pipe, but not this thing. Anyway, after trying several different things, I found I could drive in a 1/2" extension, and spin it out with a ratchet. I did use a 3/8 ratchet to push the tensioner full loose and lock it out of the way, for room.