I've had the belts off doing some jobs and noticed that the climate compressor pulley is not really spinning freely. Looking on Real OEM here it looks like you have to replace the whole tensioning unit (p/n: 11287512758) https://www.realoem.com/bmw/enUS/showparts?id=BT33-USA-06-2003-E85-BMW-Z4_25i&diagId=11_8516
Question is is this true or since i just want to replace the pulley can you get it alone? They look very similar to the ones on the aux belt to my eye but want know if anyone knows for sure.
Question is is this true or since i just want to replace the pulley can you get it alone? They look very similar to the ones on the aux belt to my eye but want know if anyone knows for sure.
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