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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Bosch Oxygen Sensor - Front
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Bosch - Corporate Logo
T#:384615
Part#: 11787589121
In Stock
Sale - Save 34% $ 197.99

This product was last offered at the strikethrough price on
05-07-2026

$ 131.43 USD
Free Shipping
Sale - Save 34%
$ 197.99

This product was last offered at the strikethrough price on
05-07-2026

$ 131.43 USD
Free Shipping
Fuel control and emissions sensor
OEM Bosch Universal 4-Wire Oxygen Sensor - Priced Each
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Bosch - Corporate Logo
T#:372884
Part#: 15733
In Stock
$ 82.99

This product was last offered at the strikethrough price on
02-16-2026

$ 74.99 USD
Free Shipping
$ 74.99 USD
Free Shipping
Bosch Universal Oxygen Sensors are perfect for replacing faulty sensors throwing off a check engine lights and causing poor operation and low gas mileage. If you are looking for a cheaper option or are unable to get a hold of the sensor you need, you can reuse part of the original wiring harness to connect this high quality replacement.
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OEM Bosch Rear Oxygen Sensor - N20 N26
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Bosch - Corporate Logo
T#:384616
Part#: 11787589122
In Stock
$ 168.99

This product was last offered at the strikethrough price on
05-07-2026

$ 111.99 USD
Free Shipping
$ 111.99 USD
Free Shipping

A new oxygen sensor can improve driveability and lengthen engine life. Ultimately, you achieve a smoother running engine that is more fuel efficient. Feedback from the oxygen sensor provides closed-loop control of the injected quantity of fuel for optimum air-fuel mixture, enabling virtually complete combustion to take place. Contaminants in gas and certain atmospheric conditions can drastically shorten the life of any oxygen sensor, therefore they should be checked with every periodic maintenance and changed if necessary.

This is the OEM Bosch oxygen sensor for BMW's with the N20 and N26 motors. This sensor is mounted in the catalytic converter in the rear most position. OEM replacement for BMW # 11787589122.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

Fits the following BMWs:
All models with the N20 or N26 motor

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BMW F Chassis Oxygen Sensor - Upstream Catalytic Converter
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Bosch - Corporate Logo
T#:554853
Part#: 11787596908
In Stock at Vendor
$ 208.99

This product was last offered at the strikethrough price on
03-09-2026

$ 193.99 USD
Free Shipping
$ 193.99 USD
Free Shipping

BMW F Chassis Oxygen Sensor - Upstream Catalytic Converter is a critical component for monitoring exhaust emissions and optimizing engine performance. Positioned at the front of the exhaust manifold, this sensor, also known as a Lambda probe, provides essential data to your vehicle's computer, ensuring efficient operation and reduced emissions.

  • Precise Emissions Monitoring: Accurately measures exhaust gases to ensure optimal engine performance and compliance with emissions standards.
  • Enhanced Engine Efficiency: Relays vital information to the vehicle's computer to adjust fuel mixtures and improve overall efficiency.
  • Improved Fuel Economy: Helps in maintaining the correct air-fuel ratio, contributing to better fuel consumption.
  • Durable Construction: Built to withstand high temperatures and harsh conditions for long-lasting reliability.
  • Direct Replacement: Designed to fit seamlessly into the upstream catalytic converter position of BMW F chassis models.

Ensure your BMW F chassis operates at peak performance with the Upstream Catalytic Converter Oxygen Sensor, designed for precise emissions control and engine efficiency.

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BMW N20 2.0L Front Oxygen Sensor
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URO - Corporate Logo
T#:35863152
Part#: 11787589121
In Stock
$ 84.99 USD
Free Shipping on orders $49 and up

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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Oxygen Sensor - B46, B48 All
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Bosch - Corporate Logo
T#:594341
Part#: 11788631047
Ships in 4 Business Days
$ 191.99 USD
Free Shipping
$ 191.99 USD
Free Shipping
A replacement Bosch oxygen sensor for the front position that will restore lost fuel economy and performance.

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
Free Shipping on orders $49 and up

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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