Auxiliary Water Coolant Pump - E90/E92/E93 M3, 335d, E85/E86 Z4M

This part is listed by BMW as BMW part number 64118369806 (64-11-8-369-806) and is described as Additional Water Pump.

This small electric water pump is used to circulate coolant to various components - the additional radiator on the 335d, the DCT heat exchanger on E90/E92/E93 M3, and the heater core on E85/E86 Z4M Coupe and Roadster. If the aux water pump fails it can have repercussions in other systems and may lead to a more expensive repair bill.

This is the Genuine BMW auxiliary water pump as originally installed on the vehicle. Mounting grommets are included and it comes with a two year warranty.