Oxygen Sensors for BMW 4 Series F36 (2015+)

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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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BMW N20 2.0L Front Oxygen Sensor
2X Entries Into Our F80 M3 Sweepstakes
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
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:27105146
Part#: 11787589121
Special Order: No Guaranteed ETA
Sale - Save 16% $ 118.99

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

$ 100.00 USD
Free Shipping on orders $49 and up
Sale - Save 16%
$ 118.99

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

$ 100.00 USD
Free Shipping on orders $49 and up
Oxygen Sensor - Upstream Catalytic Converter
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:50066854
Part#: 11787596908
In Stock
$ 99.99 USD
Free Shipping on orders $49 and up
$ 99.99 USD
Free Shipping on orders $49 and up

Bremmen Parts - Corporate Logo
T#:47439371
Part#: 02SB1815
Ships on Apr 13, 2027
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
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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