Z3 Tensioner pulley replacement
I have a new-to-me 1997 Z3 (M44) with 127K miles that has lived a very unloved life. The body is perfect but wear items are all, well, very worn. The list so far is Control arms (bought Myle HD), Rear shocks and mounts (Going with Bilstein Touring) Timing cover oil seal, rear wheel bearings and some vacuum leaks that had it failing smog. (the smog issue probably warrants a dedicated thread).
I have a definite intermittent squealing due to the tensioner pulley. I took off the belt and verified that the bearing is shot and can set up a nastly unbalanced squeal when I spin it.
I was wondering if just the pulley on the mechanical serpentine belt tensioner assembly is replaceable? Seems like an unnecessary cost to replace the whole assembly if it's just a bearing in a pulley, but I dont see it listed anywhere. It looks the same as the idler, but....
If I have to replace the whole assembly, I am seeing prices from a low of $9.02 (Partstrain) to $150 (Dealer). Any recomendations??