Oxygen Sensors for BMW F90 M5 S63 4.4L

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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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Schwaben 7/8"(22mm) Flexible Oxygen Sensor Wrench
Schwaben 7/8"(22mm) Flexible Oxygen Sensor Wrench
10X Entries Into Our F80 M3 Sweepstakes
Schwaben - Corporate Logo
T#:368923
Part#: FO-78
In Stock
Sale - Save 25% $ 48.99

This product was last offered at the strikethrough price on
05-02-2026

$ 36.74 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 25%
$ 48.99

This product was last offered at the strikethrough price on
05-02-2026

$ 36.74 USD
Free Shipping on orders $49 and up
Add to Wish List
The Schwaben oxygen sensor wrench has a six-point pivot head to provide a secure grip on stubbornly tight oxygen sensors located in awkward, inaccessible locations.
OEM Bosch Universal 4-Wire Oxygen Sensor - Priced Each
OEM Bosch Universal 4-Wire Oxygen Sensor - Priced Each
Bosch - Corporate Logo
T#:372884
Part#: 15733
In Stock
$ 74.99 USD
Free Shipping
Add to Wish List
$ 74.99 USD
Free Shipping
Add to Wish List
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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