The new part came in today, part 49075 made by goodyear, a pulley to fix my squealing current pulley.

Problem: It doesn't fit, both the diameter that the bolt slides thru is too small (actual bolt has a 14mm head, not sure of diameter of shaft)and the diameter of the actual whole pulley is 4 mm smaller than the current pulley.

I ordered the part number 49075 by goodyear, like I mentioned in earlier post, its actual app is a 92 Mercedes, but this is off in two different measurements ? I need help ! This was hopefully going to be the last day I had to drive it squealing down the road but now I'm stuck with a part that doesn't fit. I did go back to the original article fasteddy and verified that indeed, it was that part number from goodyear to order. Can you help ? Again it the pulley just below the alternator and 11am according to the fan. Both that pulley and the one below it, offset the PS pump, it will not fit on.......