Secondary Air Pump (SAI) - 11727837138 - E46 M3

This part is listed by BMW as BMW part number 11727837138 (11 72 7 837 138) and is described as Secondary Air Pump (SAI System Pump) for E46 M3. 

The secondary or auxiliary air pump system is a component of the emissions control system on all US spec E46 M3 models. When it fails, it will trigger a fault code and check engine light, preventing your E46 M3 from passing an emissions test or inspection. 

A direct replacement, this air pump is made by Pierburg, the original equipment manufacturer (OEM) for BMW. You can be assured you are getting the highest quality part available for your E46 M3, the same part we prefer and use on our own BimmerWorld BMWs. 

This pump was used on all 2001, 2002, 2003, 2004, 2005 and 2006 model year BMW M3 coupe and M3 convertible. 

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

BMW Fitments:

3 Series
E46 (99-05) > M3