BMW Oxygen Sensor - O2 Sensors for BMW 5 Series E39 (1996-2003)

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Every new BMW, and all BMW cars made from 1980 on, have an oxygen sensor, often called an "O2 sensor". The oxygen sensor is part of your BMW's emissions control system and feeds data to BMW engine management computer. The oxygen sensor is positioned in the exhaust pipe and can detect rich and lean mixtures. The goal of the oxygen sensor is to help the engine run as efficiently as possible and also to produce as few emissions as possible. When your BMW oxygen sensor fails, the computer can no longer sense the air/fuel ratio, so it ends up guessing -- resulting in poor performance, poor gas mileage, and increased pollution. Make sure your BMW engine performs as it should, and doesn't use more fuel than it needs to by simply changing your oxygen sensor today. We carry Bosch oxygen sensors, and in some cases Genuine BMW oxygen sensors or OEM oxygen sensors.
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Genuine BMW Oxygen Sensor
For vehicles with production date up to 4/1998. 2 used in the exhaust manifold, 2 locat...
Genuine BMW - Corporate Logo
T#:367737
Part#: 11781427884
Ships Jul 1, 2025
8% off MSRP $ 424.99
$ 391.99 USD
Free Shipping
8% off MSRP $ 424.99
$ 391.99 USD
Free Shipping
CTA Tools - Corporate Logo
T#:2393414
Part#: CTA2073
In Stock
$ 42.99 USD
Free Shipping on orders $49 and up
Get the complete set.
Genuine BMW - Corporate Logo
T#:367739
Part#: 11781437943
Ships Jul 1, 2025
Sale - Save 5% $ 391.99
$ 371.90 USD
Free Shipping
Sale - Save 5% $ 391.99
$ 371.90 USD
Free Shipping

Upgrade Your Engine with an Efficient O2 Sensor Replacement

If your engine is triggering an oxygen sensor check engine light, it's time to consider a replacement with this high-performance unit. The O2 sensor is a critical component that measures unburned fuel in the exhaust pipe, enabling precise fuel mapping adjustments for reduced emissions and improved fuel economy.

When the O2 sensor malfunctions, your vehicle's MPG and overall performance can suffer. The good news is that replacing this unit is a straightforward process that can quickly restore your engine's performance and mileage. To ensure easy removal in the future, apply some anti-seize on the threads.

Regular, scheduled maintenance should include the O2 sensor replacement, as these sensors have a tendency to degrade slowly over time.

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CTA Tools - Corporate Logo
T#:640932
Part#: CTA2064
In Stock
$ 14.99 USD
Free Shipping on orders $49 and up
Out of space? Use this thin wall socket.

CTA Tools - Corporate Logo
T#:3729697
Part#: CTA2068
In Stock
$ 9.99 USD
Free Shipping on orders $49 and up
Remove rust and dirt for easy installation with this tool
Oxygen Sensor - Priced Each
For vehicles with production date up to 09/1998
Genuine BMW - Corporate Logo
T#:367733
Part#: 11781247406
Ships Jul 1, 2025
Sale - Save 5% $ 356.99
$ 338.25 USD
Free Shipping
Sale - Save 5% $ 356.99
$ 338.25 USD
Free Shipping

CTA Tools - Corporate Logo
T#:640929
Part#: CTA2065
Back Ordered
$ 16.99 USD
Free Shipping on orders $49 and up
Extra length is needed sometimes