Oxygen Sensors for BMW 8 Series E31 (1991-1997)

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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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OEM Bosch Oxygen Sensor - E30 E36 E34 E32 E31
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Bosch - Corporate Logo
T#:3455
Part#: 11781735499
In Stock
$ 78.99 USD
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$ 78.99 USD
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A new oxygen sensor can improve driveability and lengthen engine life. Ultimately, you achieve a smoother running engine that is more fuel efficient. Feedback from the oxygen sensor provides closed-loop control of the injected quantity of fuel for optimum air-fuel mixture, enabling virtually complete combustion to take place. Contaminants in gas and certain atmospheric conditions can drastically shorten the life of any oxygen sensor, therefore they should be checked with every periodic maintenance and changed if necessary. Bosch Part # 13 231. Replacement for BMW part # 11781735499 and 11781738282.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!


This item fits the following BMWs:
1988-1991 E30 BMW 325i 325is 325ix 325ic
1992-1995 E36 BMW 318i 318is 318ic 318ti
1992-1995 E36 BMW 325i 325is 325ic M3
1993-1995 E34 BMW 530i
1993-3/1994 E34 BMW 540i
1993-1994 E32 BMW 740i 740il
1988-1994 E32 BMW 750il
1990-1994 E31 BMW 850i 850ci

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Schwaben - Corporate Logo
T#:368923
Part#: FO-78
In Stock
Sale - Save 25% $ 47.99
$ 35.99 USD
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Sale - Save 25% $ 47.99
$ 35.99 USD
Free Shipping on orders $49 and up
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.
Genuine BMW Oxygen Sensor - E31 E52
After catalyst in exhaust pipe. ¦ Left After catalyst in exhaust pipe. ¦ Right
Genuine BMW - Corporate Logo
T#:37658
Part#: 11781742052
Ships Jul 9, 2025
Sale - Save 5% $ 391.99
$ 371.90 USD
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Sale - Save 5% $ 391.99
$ 371.90 USD
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Genuine BMW Lambda Monitor Sensor - L=325mm

Fits BMW Engines including:
M62,M73S62


Bosch Oxygen Sensor - Mounts Before Catalytic - E36 Z3 M44, E31, E38,...
2 Required per model, located before the catalyst
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Bosch - Corporate Logo
T#:13046
Part#: 11781247406
Ships on Oct 9, 2025
$ 79.99 USD
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$ 79.99 USD
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This direct fit Bosch oxygen sensor plugs directly into your factory connector. Fits M44 engine Z3 and 3 series and M62 engine E39, E38, E31 with V8 engines. No cutting or splicing required. A new oxygen sensor can improve driveability and lengthen engine life. Bosch part number 13559.

This is the pre-catalytic converter oxygen sensor

This item fits the following BMWs:
1996-1998 E36 BMW 318i 318is 318ti 318ic
1997-1998 E39 BMW 540i
1996-2001 E38 BMW 740i 740il
1996-1998 Z3 BMW Z3 1.9
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ECS - Corporate Logo
T#:637408
Part#: 028092ECS11AKT
In Stock
Sale - Save 30% $ 3.99
$ 2.79 USD
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Sale - Save 30% $ 3.99
$ 2.79 USD
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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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Oxygen Sensor - Priced Each
2 Required per model, located before the catalyst
Genuine BMW - Corporate Logo
T#:367733
Part#: 11781247406
Ships Jul 1, 2025
Sale - Save 5% $ 356.99
$ 338.25 USD
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Sale - Save 5% $ 356.99
$ 338.25 USD
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Pierburg - Corporate Logo
T#:22064620
Part#: 11781247406
Special Order: No Guaranteed ETA
$ 50.99 USD
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$ 50.99 USD
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Meyle Oxygen Sensor - Pre-Cat - E36 Z3 M44, E31, E38, E39 M62 (97-98)...
2 Required per model, located before the catalyst
2X Entries For Our Spin To Win Sweepstakes! We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:5944214
Part#: 11781247406
Special Order: No Guaranteed ETA
$ 54.99 USD
$ 54.99 USD
This direct-fit Meyle oxygen sensor plugs directly into your factory connector. Fits M44 engine Z3 and 3 series and M62 engine E39, E38, E31 with V8 engines. No cutting or splicing is required. A new oxygen sensor can improve driveability and lengthen engine life. This is the pre-catalytic converter oxygen sensor
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