Is it bad if the belt has a hole?
(On the left, original Toyota pulley. On the right, the one that fits BMW and now fits MR2 too)
I’m not the biggest fan of original toyota pulleys (they’re expensive and heavy) so I decided to check out if I could find an alternative. The toyota pulley is 90mm dia, around 20mm wide and has a 10mm hole.
I found a BMW tensioner pulley, which is 70mm dia, 25mm wide with 10mm hole. It is a Dayco 89046 and has a bmw part number 11 28 1 748 131. Fits at least E34 518/520/525.
Seems to work pretty well. And now it fits AW11 too.
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