This part is listed by BMW as BMW part number 32427516848 (32 42 7 516 848) and is described as an upgraded aluminum pulley for the power steering pump on 2004-2006 E60 525i/530i and E83 X3 2.5i/3.0i (M54 engine). This is not for cars that have the factory Dynamic Drive option (active sway bars).
It is essential to inspect this pulley for any signs of failure any time you have access to it (belt change, intercooler change, or any time the undertray panel is removed. Cracks can form in the original plastic or the belt grooves can chip. If left unattended the entire pulley can shatter and send sharp plastic throughout the engine bay.
This is a E60 and X3 PS pump pulley manufactured by Rein Automotive (CRP) - a front-line supplier of original equipment, private label, and in-house engineered replacement parts. Rein replacement products meet or exceed all of BMW's original design, fitment, and performance requirements and they carry out testing with ISO and German TUV for quality control. Rein parts are the best alternative to more expensive Original BMW parts because they are virtually identical without the inflated price tag. This part has a two year warranty.
For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.
BMW Fitments:
5 Series
E60 / E61 (04-10) > 525i M54 (2004-2005)
E60 / E61 (04-10) > 530i M54 (2004-2005)
X3 Series
E83 X3 (2004-2010) > X3 2.5i M54 (2004-2005)
E83 X3 (2004-2010) > X3 3.0i M54 (2004-2006)