A/C & Power Steering Belt Idler Pulley, BMW - E9X M3 (2008-2013)

This part is listed by BMW as BMW part number 11287841531 (11-28-7-841-531) and is described as Deflection Pulley for  the power steering and AC Belt on 2008-2013 E9X M3 (all cars from 5/2008 production date). Hint: the belt spins counter-clockwise; the early belt spins clockwise. This is a deflection pulley, aka idler pulley or belt roller. The deflection pulley contains a bearing that eventually wears out over time.  It is always a good idea to replace the Deflection Pulley when the belt is serviced.

This is a Genuine BMW Deflection Pulley with a two year warranty. Buying a Genuine part will usually be more expensive than an OEM or aftermarket brand but you are assured that it meets BMW's designs for fitment, performance, and longevity. It will also be the very latest design, incorporating any updates or revisions that an aftermarket brand typically will ignore.

For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.