690mm. Rear O2 sensor/Lambda probe
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Brand:
ES#:
3031909
Mfg#:
11787589475
In Stock
$223.99
This product was last offered at the strikethrough price on 04-30-2026
Located in the front position of the exhaust manifold for cylinders 1-3 on the S54 engine
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Brand:
ES#:
3031886
Mfg#:
11781743994
In Stock at Vendor
$199.99
This product was last offered at the strikethrough price on 05-07-2026
Oxygen sensors measure exhaust oxygen. Their signals are used by the vehicle computer to adjust the air/fuel ratio and test vehicle emissions. Degraded oxygen sensors reduce engine performance and fuel efficiency, and increase harmful tailpipe emissions.
Brand:
ES#:
4840199
Mfg#:
13628589844
In Stock
ON SALE!
$442.99
This product was last offered at the strikethrough price on 07-14-2026
Also BMW # 11781405324. Located in the front position of the exhaust manifold for cylinders 4-6 on the S54 engine
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Also BMW # 11781406622. Located in the rear position of the exhaust manifold for cylinders 4-6 on the S54 engine
2X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat!
Brand:
ES#:
11026
Mfg#:
13951
In Stock at Vendor
$208.90
This product was last offered at the strikethrough price on 05-19-2026
A common source of check engine lights is a failed or failing oxygen sensor. When the O2 sensor can't register oxygen content before and after your catalytic converter, it doesn't know what to do with the fuel mixture and will default to run rich. Replace old failing oxygen sensors with OEM O2 sensors or quality aftermarket O2 sensors if you're looking to save a few bucks.