GERMBAN Upstream Oxygen Sensor – Front O2 Sensor For BMW 128i, 328i, 528i, X3, Z4
About this item
This GERMBAN upstream oxygen sensor is a direct drop-in replacement for a bunch of BMW models from 2006 to 2014, including the 128i, 328i, 528i, 530i, X3, and Z4.
It replaces the OE number 11787558073, along with a ton of cross-references like 5S9801, 24333, 2345138, and many more.
It's a 5-wire sensor with both blade and bullet terminals, so it matches the factory setup.
Installation is straightforward – just unplug the old one and screw this in.
It's located upstream (front) of the catalytic converter, so it's critical for fuel trim and engine performance.
Comes with a 3-year warranty, so you're covered.
If your BMW is throwing a check engine light for O2 efficiency, this sensor is likely the fix.
Get your engine running smooth and clean with this brand new part.
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