Oxygen Sensors for BMW 4 Series F32 (2014+)

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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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Schwaben 7/8"(22mm) Flexible Oxygen Sensor Wrench
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Schwaben - Corporate Logo
T#:368923
Part#: FO-78
In Stock
Sale - Save 25% $ 48.99

This product was last offered at the strikethrough price on
05-02-2026

$ 36.74 USD
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Sale - Save 25%
$ 48.99

This product was last offered at the strikethrough price on
05-02-2026

$ 36.74 USD
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The Schwaben oxygen sensor wrench has a six-point pivot head to provide a secure grip on stubbornly tight oxygen sensors located in awkward, inaccessible locations.
Walker Oxygen Sensor - Downstream - F22 M235, F3X 335/435, F06/F12 64...
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Walker - Corporate Logo
T#:31324163
Part#: 11787645875
In Stock at Vendor
$ 101.99

This product was last offered at the strikethrough price on
04-14-2026

$ 91.99 USD
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$ 91.99 USD
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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.
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Oxygen Sensor
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Bremmen Parts - Corporate Logo
T#:27105146
Part#: 11787589121
In Stock
Sale - Save 15% $ 118.99

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

$ 100.56 USD
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Sale - Save 15%
$ 118.99

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

$ 100.56 USD
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Stainless Steel Oxygen Sensor (O2) Weld Bung (M18x1.5mm) - Priced Eac...
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ECS - Corporate Logo
T#:637408
Part#: 028092ECS11AKT
In Stock
Sale - Save 25% $ 3.99

This product was last offered at the strikethrough price on
06-14-2026

$ 2.99 USD
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Sale - Save 25%
$ 3.99

This product was last offered at the strikethrough price on
06-14-2026

$ 2.99 USD
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Upgrade your exhaust system with the Stainless Steel Oxygen Sensor (O2) Weld Bung (M18x1.5mm). This high-quality weld bung is made from stainless steel, ensuring durability and resistance to corrosion. It features M18x1.5mm threads, making it compatible with most oxygen sensors. Perfect for custom exhaust setups or replacing damaged bungs, this weld bung is a must-have for any automotive enthusiast.

  • Made from high-quality stainless steel for durability and corrosion resistance
  • M18x1.5mm threads ensure compatibility with most oxygen sensors
  • Ideal for custom exhaust setups or replacing damaged bungs
  • Essential for automotive enthusiasts looking to upgrade their exhaust system
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BMW N20 2.0L Front Oxygen Sensor
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URO - Corporate Logo
T#:35863152
Part#: 11787589121
Ships in 1 Business Day
$ 83.99 USD
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BMW N20 2.0L Front Oxygen Sensor - 11787589121 is a high-quality direct-fit replacement designed to restore precise air-fuel ratio measurements for optimal engine efficiency. This oxygen sensor ensures accurate emissions control and fuel economy by delivering real-time data to the engine management system. Built with durable materials to withstand extreme exhaust temperatures, it guarantees long-lasting performance and reliability. Featuring an easy plug-and-play connection, this sensor simplifies installation while maintaining OE-level precision.

  • Guaranteed fitment for seamless installation and proper functionality
  • Direct-fit OE replacement design restores accurate air-fuel mixture regulation
  • Easy plug-and-play connection for hassle-free installation
  • High-quality materials withstand extreme exhaust system heat for durability
  • Alloy conductors minimize electrical resistance for precise sensor operation
  • Backed by a 24-month unlimited mileage warranty for added confidence

Ensure optimal fuel efficiency and emissions performance by replacing your worn-out oxygen sensor with this premium-quality BMW N20 2.0L Front Oxygen Sensor.

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02 SENSOR BUNG (WELD-ON TYPE) 304 STAINLESS STEEL (M18x1.5mm) ...
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Bremmen Parts - Corporate Logo
T#:47439371
Part#: 02SB1815
Ships on Feb 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
Free Shipping on orders $49 and up

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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URO Oxygen Sensor - Rear F30 320i, E84 X1 82i, F23 228i
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URO - Corporate Logo
T#:34549586
Part#: 11787589122
Back Ordered
$ 70.99 USD
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The URO Oxygen Sensor - Rear is a critical component for BMW exhaust systems, helping to monitor and regulate emissions for improved engine performance, fuel efficiency, and environmental compliance. This rear oxygen sensor provides accurate air-fuel ratio data to the engine's control unit, ensuring optimal combustion and efficient exhaust output. Engineered to meet OEM standards, this sensor offers a precise fit and reliable performance for BMW vehicles. Available from Turner Motorsport, the URO Oxygen Sensor - Rear is an ideal solution for maintaining your BMW’s peak efficiency and reducing emissions.

  • Optimizes fuel economy by delivering accurate air-fuel ratio data
  • Reduces harmful emissions, contributing to a cleaner exhaust
  • Engineered to OEM specifications for easy installation and exact fit
  • Enhances engine performance with smoother operation and better acceleration
  • Durable construction ensures long-lasting performance in extreme conditions
  • Available from Turner Motorsport, a trusted supplier of BMW parts

The URO Oxygen Sensor - Rear is the perfect choice for BMW owners looking to maintain fuel efficiency and reduce emissions with a dependable replacement part.

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