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Oxygen Sensors

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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FAE - Corporate Logo
T#:23383309
Part#: 11787548961
In Stock
$ 74.99 USD
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$ 74.99 USD
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Experience a precise fuel-air mixture monitoring system with this Oxygen Sensor designed for your BMW. This heated sensor, ideal for the post-cat, ensures accurate data transmission to the ECU for optimal engine performance. If you're experiencing a drastic drop in gas mileage, replacing your O2 sensor might be the solution to your Check Engine light woes.

Benefits:

  • Monitors fuel-air mixture for optimum engine performance
  • Heated sensor type for post-cat efficiency
  • Helps maintain gas mileage
  • Essential component for resolving Check Engine light issues
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FAE - Corporate Logo
T#:1196086
Part#: 11787545074
In Stock
$ 90.99 USD
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$ 90.99 USD
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Fuel control and emissions control sensor
FAE - Corporate Logo
T#:1196087
Part#: 11787545075
In Stock
$ 78.99 USD
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$ 78.99 USD
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Fuel control and emissions control sensor

FAE - Corporate Logo
T#:583149
Part#: 11787537984
Ships on Sep 9, 2026
$ 94.99 USD
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$ 94.99 USD
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Located on the catalytic converters, 2 required

FAE - Corporate Logo
T#:26238379
Part#: 11787549860
In Stock
$ 104.99 USD
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$ 104.99 USD
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Ensure optimal engine performance with the FAE Oxygen Sensor for your MINI. Designed to read the fuel-air mixture, this heated sensor communicates with the ECU to maintain peak performance levels. Detect issues early and prevent a drop in gas mileage with this pre-cat oxygen sensor.

  • Monitors fuel-air mixture for optimal engine performance
  • Heated sensor type ensures accurate readings
  • Early detection of sensor issues prevents a decrease in gas mileage
  • Also known as a Lambda Probe
  • FAE brand product guarantees quality and reliability
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FAE - Corporate Logo
T#:583150
Part#: 11787558055
Ships on Sep 3, 2026
$ 117.99 USD
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$ 117.99 USD
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Fuel control and emissions control sensor

FAE - Corporate Logo
T#:31622538
Part#: 11787590713
In Stock
$ 95.99 USD
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$ 95.99 USD
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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
Free Shipping on orders $49 and up
Sale - Save 25%
$ 3.99

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

$ 2.99 USD
Free Shipping on orders $49 and up

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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Packaged by Turner - Corporate Logo
T#:56110313
Part#: 11787558055KT
In Stock
New Item
$ 307.99

This product was last offered at the strikethrough price on
08-13-2026

$ 304.99 USD
Free Shipping on orders $49 and up
$ 304.99 USD
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Your engine's air fuel ratio needs to be dead on. Worn out factory pre-cat oxygen sensors delay vital data to the DME, leading to sub optimal fueling, lost horsepower, and dangerous hesitation under load.
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Packaged by Turner - Corporate Logo
T#:55353594
Part#: 11787545074/5KT2
In Stock
New Item
$ 366.99 USD
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Sluggish oxygen sensors do a lot more than just light up your dashboard with an annoying Check Engine Light—they directly choke your BMW’s performance.
Packaged by Turner - Corporate Logo
T#:55857772
Part#: 11787589475KT2
In Stock
New Item
$ 335.99 USD
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Extreme exhaust heat and carbon buildup degrade your factory oxygen sensors over time, sending lazy data to your DME and robbing you of performance.
Packaged by Turner - Corporate Logo
T#:55317713
Part#: BFR1/2O2SKT2
In Stock
New Item
$ 400.99

This product was last offered at the strikethrough price on
07-14-2026

$ 333.99 USD
Free Shipping on orders $49 and up
$ 333.99 USD
Free Shipping on orders $49 and up
Over time, that degradation robs your BMW of its crisp throttle response, tanks your fuel economy, and leaves you staring at a failed emissions ticket


FAE - Corporate Logo
T#:31556134
Part#: 11780872674
Ships in 8 Business Days
$ 74.99 USD
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$ 74.99 USD
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Packaged by Turner - Corporate Logo
T#:339000
Part#: TEN9949O2S
Ships in 6 Business Days
Starting at $ 12.95 USD
Free Shipping on orders $49 and up
Starting at $ 12.95 USD
Free Shipping on orders $49 and up
This weld-in bung allows an O2 sensor to be screwed into your exhaust system. It's required for custom exhaust systems, and is also useful for air/fuel ratio measurements when dyno testing.
FAE - Corporate Logo
T#:583147
Part#: 11781742051
Ships on Sep 9, 2026
$ 86.99 USD
Free Shipping
$ 86.99 USD
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Rear, after catalyst

FAE - Corporate Logo
T#:583146
Part#: 11787836451
Ships on Sep 9, 2026
$ 86.99 USD
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$ 86.99 USD
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Bank 2 sensor, after the catalytic converter