Autodayplus Secondary Air Injection Pump For 2001-2004 BMW E53 X5 4.4L – 11721437700

Need to pass emissions?

This secondary air injection pump from autodayplus is a direct replacement for your 2001 to 2004 BMW E53 X5 with the 4.4L engine.

It's a brand new unit, designed to get that extra air into the exhaust to help the catalytic converters light off quickly.

The OEM part number is 11721437700, and it also replaces 722166390 and 11721437911.

It's an electrical pump with low power consumption, finished in black.

It comes with a 1-year warranty.

It's a straightforward swap – just remove the old one and install this new pump.

Perfect for keeping your BMW running clean and legal.