Oxygen Sensors for BMW 3 Series E91 (2006-2012)

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Oxygen sensors constantly monitor engine emissions and relays this data to the DME. Using these readings the computer determines the proper air/fuel mixture as well as how efficiently the catalyst system is functioning. Symptoms of a failed oxygen sensor range from an EML to poor fuel economy and severe loss of power. A failed upstream sensor will typically cause the engine to run poorly and a failed downstream sensor will typically present as a catalyst efficiency code.

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Rear Oxygen Sensor - Bank 2 Post-Cat

2X Entries Into Our F80 M3 Sweepstakes

T#:35863161

Part#: 11787545075

In Stock

$ 76.99 USD

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$ 76.99 USD

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The oxygen sensor is vital to the performance and drivability of your car. The engine computer relies on data from the sensor to make adjustments in engine efficiency and performance. 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. There is no lifespan on O2 sensors but there are several fault codes that indicate a failed sensor (O2 monitoring, cat efficiency, O2 heating circuit, O2 readiness, and others). The O2 sensor is heated and has a self-calibration feature so once you get the codes or feel performance has suffered, a new sensor is a good starting point to get you back to peak performance.

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Oxygen Sensor

10X Entries Into Our F80 M3 Sweepstakes

T#:27105145

Part#: 11787545075

In Stock

Sale - Save 15% $ 115.99

This product was last offered at the strikethrough price on
09-16-2026

$ 98.59 USD

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Sale - Save 15%

$ 115.99

This product was last offered at the strikethrough price on
09-16-2026

$ 98.59 USD

Add to Wish List

Rear Oxygen Sensor - Bank 1 Post-Cat

10X Entries Into Our F80 M3 Sweepstakes

T#:57340375

Part#: 11787545074

Ships on Dec 29, 2026

$ 79.99 USD

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$ 79.99 USD

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E9X M3 Oxygen Sensor - Priced Each

10X Entries Into Our F80 M3 Sweepstakes

T#:57267803

Part#: 11787537984

Ships on Dec 29, 2026

$ 79.99 USD

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$ 79.99 USD

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Front Oxygen Sensor - Bank 1 Pre-Cat

10X Entries Into Our F80 M3 Sweepstakes

T#:54780515

Part#: 11787558055

Special Order: No Guaranteed ETA

$ 99.99 USD

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$ 99.99 USD

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02 SENSOR BUNG (WELD-ON TYPE) 304 STAINLESS STEEL (M18x1.5mm) ...

10X Entries Into Our F80 M3 Sweepstakes

T#:47439371

Part#: 02SB1815

Ships on May 3, 2027

Sale - Save 39% $ 3.99

This product was last offered at the strikethrough price on
05-03-2026

$ 2.44 USD

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Sale - Save 39%

$ 3.99

This product was last offered at the strikethrough price on
05-03-2026

$ 2.44 USD

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Easily add an oxygen sensor to your custom exhaust setup with this universal O2 sensor bung. Designed for simple weld-on installation, it allows you to place your sensor exactly where you need it—perfect for custom builds, exhaust modifications, or performance tuning projects.

Features:

CNC-cut from T304 Stainless Steel for corrosion resistance
Threaded for M18x1.5mm RH oxygen sensors

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Oxygen Sensors for BMW 3 Series E91 (2006-2012)

Rear Oxygen Sensor - Bank 2 Post-Cat

Oxygen Sensor

Rear Oxygen Sensor - Bank 1 Post-Cat

E9X M3 Oxygen Sensor - Priced Each

Front Oxygen Sensor - Bank 1 Pre-Cat

02 SENSOR BUNG (WELD-ON TYPE) 304 STAINLESS STEEL (M18x1.5mm) ...

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