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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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Bosch Oxygen Sensors - Bank 1 And 2 Pre-Cat - N52

T#:56110313

Part#: 11787558055KT

In Stock

$ 307.99

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

$ 304.99 USD

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$ 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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Rear Oxygen Sensor Set - N52, N54

T#:55353594

Part#: 11787545074/5KT2

In Stock

$ 366.99 USD

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$ 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.

Bosch Oxygen Sensor Set - Pre and Post Catalytic Converter - N55 ...

T#:55857772

Part#: 11787589475KT2

In Stock

$ 335.99 USD

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$ 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.

Front Oxygen Sensor Set - E9x, E82, E88, Z4

T#:55317713

Part#: BFR1/2O2SKT2

In Stock

$ 400.99

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

$ 333.99 USD

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$ 333.99 USD

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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

Denso Oxygen Sensor - Right - E60, E63, E64

T#:1196208

Part#: 11787540166

In Stock at Vendor

$ 205.99

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

$ 199.99 USD

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$ 199.99 USD

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Reads out emissions levels to the cars computer

Oxygen Sensor - Priced Each

T#:588104

Part#: 11787548961

Ships in 1-2 days

$ 189.99

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

$ 183.99 USD

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$ 183.99 USD

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O2 Sensor Bung and Plug

T#:339000

Part#: TEN9949O2S

Ships in 6 Business Days

Starting at $ 12.95 USD

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Starting at $ 12.95 USD

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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.

Oxygen Sensor - Grey - before catalytic converter - E60 550i E63 650i...

T#:6366586

Part#: 11787540168

Back Ordered

$ 150.99

This product was last offered at the strikethrough price on
05-08-2026

$ 145.99 USD

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$ 145.99 USD

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This is the pre-cat oxygen sensor 550mm for cylinders 5-8 for BMW E60 550i and E63 650i. Bosch # 17093.

This item fits the following BMWs:
2005-2010 E60 BMW 550i
2005-2010 E63 BMW 650i
For cars with manual transmission.

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Replacement (8)

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Oxygen Sensors

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