Flyerdan that a good one to know about the bolt heads. I also heard that with rare flywheels. people just flipping the ring over when the theeth are worn.
My autozone and O riley alternators are both the same place of reman. Mexico. then I got both new ones from same places say both reman in China and the housing are not even Hitachi or Mitshibshi units. these are chinese cased units now. So they getting them from same supplier.
My Last O riley alternator did last alot long a few years agao but reman was in a different country. Think It was a USA reman. they keep changing.
I order a new 35 amp alt from Partsgeek.com. Looking into it I think its chinese as the photo shows the same units I got from autozone and O rileys are reman. However I havent got it yet.Maybe it will be better as they make volvos and caddllacs in china now
I also ordered a 521 speedo cable and when it showed up there was no cable in the housing WTF!!!!!!!!!!!!!!! I emailed them and heard nothing back so I will see.
but if anybody has a TroyErmish/TSI starter lets us know if worth buying.