It's vital to check your pulleys during routine maintenance. Most pulleys on factory engines are plastic and are prone to wear or even failure, and a faulty pulley could leave you stranded. Also the factory mounted the water pump pulley/Power Steering Pump Pulley at the front of the engine near the road. This arrangement is troublesome for many enthusiasts. For this reason, we have redesigned a number of related products.
Aluminum version of the standard water pump pulley/Power Steering Pump Pulley used on M52tu and M54 engines. This pulley is a direct replacement using the factory belt and hardware, but the service life is longer.

Specification:
Type: Water Pump Pulley&Power Steering Pump Pulley
Replacement Part Number: 11511436590，32421740 858，11287636379，11281706545，11281437475
Material: Aluminum Alloy
Surface treatment: Anodized

Fitment:
Compatible with BMW ：

3 Series E46 320i/Ci 323i/Ci 325i/Ci/ 328i/Ci/Xi 330i/Ci 1999-2005
5 Series E39 520i 523i 525i 528i 530i 1998-2003
7 Series E38 728i 1998-2001
X3 Series E83 2.5i 3.0i 2004-2006
X5 Series E53 3.0i 2000-2006
Z Series E36/5 2.0i 2.2i 2.5i 2.8i 3.0i 1999-2002