Oxygen Sensors for BMW E71 X6 ActiveHybrid N63 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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URO Oxygen Sensor - Priced Each
URO Oxygen Sensor - Priced Each
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T#:8741231
Part#: 11787576673
In Stock at Vendor
$ 104.63

This product was last offered at the strikethrough price on
07-11-2026

$ 104.19 USD
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$ 104.19 USD
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URO Oxygen Sensor - Post Cat - BMW N63 4.4L
URO Oxygen Sensor - Post Cat - BMW N63 4.4L
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T#:43750201
Part#: 11787614322
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$ 69.99 USD
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$ 69.99 USD
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Replace worn-out and or malfunctioning O2 sensors to make your vehicle emissions compliant
02 SENSOR BUNG (WELD-ON TYPE) 304 STAINLESS STEEL (M18x1.5mm)
02 SENSOR BUNG (WELD-ON TYPE) 304 STAINLESS STEEL (M18x1.5mm) ...
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Bremmen Parts - Corporate Logo
T#:47439371
Part#: 02SB1815
Ships on Feb 8, 2027
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This product was last offered at the strikethrough price on
05-03-2026

$ 2.44 USD
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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
Add to Wish List

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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