Emissions System for BMW 5 Series E34 (1987-1995)

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Is your BMW throwing emissions related codes? While we're primarily a BMW performance parts house, we understand the importance of maintaining your emissions system to pass inspection in your area and keep your check engine light off. Pick up your emissions related parts from Turner Motorsport.

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Turner Baffled Oil Catch Can Kit - 8oz
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:398784
Part#: 022798TMS01-07KT
In Stock
Sale - Save 15% $ 336.99

This product was last offered at the strikethrough price on
06-14-2026

$ 286.44 USD
Free Shipping
Sale - Save 15%
$ 336.99

This product was last offered at the strikethrough price on
06-14-2026

$ 286.44 USD
Free Shipping
When we designed this catch we wanted to have the most function options available, the best separation method, and the easiest to service. The Turner engineered catch cans offer a pre-setup design based ion desired flow direction, however, this does not limit you to this flow. The inner baffle orientation can be easily adjusted to flow in both directions in case you decide to move this catch can to a different vehicle. A 4 chamber system baffle system inside the catch can was engineered to create multiple changes in the direction of airflow within the separator to cause oil droplets to fall out of suspension before exiting the catch can. Having a closed/recirculated design reduces oil ingestion and promotes cleaner emissions and odor-less operation.
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Turner Baffled Oil Universal Catch Can Kit - 10oz
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:398786
Part#: 022798TMS01-09KT
In Stock
Sale - Save 15% $ 305.99

This product was last offered at the strikethrough price on
06-14-2026

$ 260.09 USD
Free Shipping
Sale - Save 15%
$ 305.99

This product was last offered at the strikethrough price on
06-14-2026

$ 260.09 USD
Free Shipping
When we designed this catch we wanted to have the most function options available, the best separation method, and the easiest to service. The Turner engineered catch cans offer a pre-setup design based ion desired flow direction, however this does not limit you to this flow.
Show More Show Less
Turner Baffled Oil Catch Can Kit - 6oz
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:398782
Part#: 022798TMS01-05KT
In Stock
Sale - Save 15% $ 302.99

This product was last offered at the strikethrough price on
06-14-2026

$ 257.54 USD
Free Shipping
Sale - Save 15%
$ 302.99

This product was last offered at the strikethrough price on
06-14-2026

$ 257.54 USD
Free Shipping
When we designed this catch we wanted to have the most function options available, the best separation method, and the easiest to service. The Turner engineered catch cans offer a pre-setup design based ion desired flow direction, however, this does not limit you to this flow. The inner baffle orientation can be easily adjusted to flow in both directions in case you decide to move this catch can to a different vehicle. A 4 chamber system baffle system inside the catch can was engineered to create multiple changes in the direction of airflow within the separator to cause oil droplets to fall out of suspension before exiting the catch can. Having a closed/recirculated design reduces oil ingestion and promotes cleaner emissions and odor-less operation.
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Bosch - Corporate Logo
T#:3455
Part#: 11781735499
Ships in 2 Business Days
$ 111.99 USD
Free Shipping
$ 111.99 USD
Free Shipping

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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Mishimoto - Corporate Logo
T#:597051
Part#: MMOCCLA
In Stock
$ 127.99 USD
Free Shipping
$ 127.99 USD
Free Shipping
WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Genuine BMW - Corporate Logo
T#:35157
Part#: 11421265376
Ships in 1-2 days
1% off MSRP $ 92.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 91.99 USD
Free Shipping
1% off MSRP
$ 92.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 91.99 USD
Free Shipping


Genuine BMW Pipe -
This item fits the following BMW Chassis:
E30,E34

Fits BMW Engines including:
M20


Genuine BMW - Corporate Logo
T#:19248
Part#: 11617501562
Ships in 3 Business Days
3% off MSRP $ 87.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 84.99 USD
Free Shipping
3% off MSRP
$ 87.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 84.99 USD
Free Shipping
Genuine BMW ENGINE COVER WITH NON-RETURNVALVE
Bosch Oxygen Sensor - E34
For vehicles with production date from 06/1994
Bosch - Corporate Logo
T#:578932
Part#: 13523
In Stock
$ 119.13

This product was last offered at the strikethrough price on
04-10-2026

$ 102.99 USD
Limited Qty Sale
Free Shipping
$ 119.13

This product was last offered at the strikethrough price on
04-10-2026

$ 102.99 USD
Limited Qty Sale
Free Shipping
2 Required in each application

Mishimoto - Corporate Logo
T#:372557
Part#: MMOCCCF
In Stock
$ 162.99 USD
Free Shipping
$ 162.99 USD
Free Shipping
Universal kit with a catch can and rubber hose; for retrofitting on a variety of vehicles. Carbon fiber catch can prevents a harmful buildup of oil inside of the turbocharger, intake manifold, intercooler and piping. Separates oil particles from PCV/CCV air Defends intercooler, intake system, and essential components from oil blow-by Made from lightweight carbon fiber Compact design makes for easy engine bay placement Checking fluid levels made easy with built in sight tube Comes complete with mounting bracket, hose, all necessary clamps, fittings, and mounting hardware Mishimoto Lifetime Warranty WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Bosch - Corporate Logo
T#:639139
Part#: 11781735680
Ships in 2 Business Days
$ 110.99

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

$ 88.99 USD
Free Shipping
$ 88.99 USD
Free Shipping
The oxygen sensor is vital to the performance and drivability of your car. The engine computer relies on data from the sensor to make adjustments in engine efficiency and performance. When your BMW oxygen sensor fails, the computer can no longer sense the air/fuel ratio, so it ends up guessing -- resulting in poor performance, poor gas mileage, and increased pollution. Make sure your BMW engine performs as it should, and doesn't use more fuel than it needs to, by simply changing your oxygen sensor today. There is no lifespan on O2 sensors but there are several fault codes that indicate a failed sensor (O2 monitoring, cat efficiency, O2 heating circuit, O2 readiness, and others). The O2 sensor is heated and has a self-calibration feature so once you get the codes or feel performance has suffered, a new sensor is a good starting point to get you back to peak performance. Bosch's Oxygen sensors are high quality and will give you the longest and best performance for the price. 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!
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Bosch - Corporate Logo
T#:2119
Part#: 11781468620
Ships in 2 Business Days
$ 126.56

This product was last offered at the strikethrough price on
08-03-2026

$ 104.42 USD
Free Shipping
$ 104.42 USD
Free Shipping
This is the Bosch oxygen sensor for BMW E34 525i 1991-1995 with M50 engine Bosch # 13 108.

This item fits the following BMWs:
1991-1995 E34 BMW 525i 525i wagon
Universal Vortex Breather Catch Can
2X Entries Into Our F80 M3 Sweepstakes
034Motorsport - Corporate Logo
T#:587831
Part#: 034-101-4000
Back Ordered
$ 153.00 USD
Free Shipping
$ 153.00 USD
Free Shipping


Genuine BMW - Corporate Logo
T#:219788
Part#: 11781735680
Ships in 8 Business Days
6% off MSRP $ 445.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 418.99 USD
Free Shipping
6% off MSRP
$ 445.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 418.99 USD
Free Shipping
The oxygen sensor is vital to the performance and drivability of your car. The engine computer relies on data from the sensor to make adjustments in engine efficiency and performance. When your BMW oxygen sensor fails, the computer can no longer sense the air/fuel ratio, so it ends up guessing -- resulting in poor performance, poor gas mileage, and increased pollution. Make sure your BMW engine performs as it should, and doesn't use more fuel than it needs to, by simply changing your oxygen sensor today. There is no lifespan on O2 sensors but there are several fault codes that indicate a failed sensor (O2 monitoring, cat efficiency, O2 heating circuit, O2 readiness, and others). The O2 sensor is heated and has a self-calibration feature so once you get the codes or feel performance has suffered, a new sensor is a good starting point to get you back to peak performance. 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!
Show More Show Less
Genuine BMW - Corporate Logo
T#:36425
Part#: 11611742324
Ships in 8 Business Days
2% off MSRP $ 169.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 166.99 USD
Free Shipping
2% off MSRP
$ 169.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 166.99 USD
Free Shipping


Genuine BMW Sound Absorber -
This item fits the following BMW Chassis:
E34

Fits BMW Engines including:
M60

Bosch - Corporate Logo
T#:37648
Part#: 11781730007
Special Order: No Guaranteed ETA
$ 117.99 USD
Free Shipping
$ 117.99 USD
Free Shipping
Bosch BMW OXYGEN SENSOR