Packaged by Turner Oxygen Sensors for BMW 3 Series E90 (2006-2011)

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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 Sensors - Bank 1 And 2 Pre-Cat - N52
Bosch Oxygen Sensors - Bank 1 And 2 Pre-Cat - N52
Packaged by Turner - Corporate Logo
T#:56110313
Part#: 11787558055KT
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$ 307.99 USD
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$ 307.99 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
Rear Oxygen Sensor Set - N52, N54
Packaged by Turner - Corporate Logo
T#:55353594
Part#: 11787545074/5KT2
In Stock
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$ 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.
Front Oxygen Sensor Set - E9x, E82, E88, Z4
Front Oxygen Sensor Set - E9x, E82, E88, Z4
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

$ 337.99 USD
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$ 337.99 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
Bosch Oxygen Sensor Set - Pre and Post Catalytic Converter - N55
Bosch Oxygen Sensor Set - Pre and Post Catalytic Converter - N55 ...
Packaged by Turner - Corporate Logo
T#:55857772
Part#: 11787589475KT2
In Stock
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$ 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.

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