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Emissions System

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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Bosch Fuel Tank Breather Valve - 13907643106
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:18468288
Part#: 13907643106
In Stock
Sale - Save 5% $ 76.99

This product was last offered at the strikethrough price on
05-03-2026

$ 73.14 USD
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Sale - Save 5%
$ 76.99

This product was last offered at the strikethrough price on
05-03-2026

$ 73.14 USD
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Common CEL cause on B48/B58/S58. Get your fuel system functioning properly again!
OEM Bosch Post-Cat Oxygen Sensor (O2 Sensor) - E9X M3
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:14663
Part#: 11787539125
In Stock
$ 155.99

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

$ 111.99 USD
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$ 111.99 USD
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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.

This is a Bosch O2 sensor - also known as a Lambda probe. Bosch is an OEM supplier to BMW.

Position: after the catalytic converter (post-cat).

This item fits the following BMWs:
2008-2013 E90 E92 E93 BMW M3 Sedan, Coupe, Convertible

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Bavarian Autosport - Corporate Logo
T#:25075803
Part#: 13907643106
In Stock
Sale - Save 20% $ 68.99

This product was last offered at the strikethrough price on
05-03-2026

$ 55.19 USD
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Sale - Save 20%
$ 68.99

This product was last offered at the strikethrough price on
05-03-2026

$ 55.19 USD
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Vargas Turbo Technologies - Corporate Logo
T#:389684
Part#: VTT-N54-PCV
In Stock
$ 68.99 USD
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The crankcase oil vent system on the N52/N54 is one of its weakest and cheaply designed systems. We see crankcase vent issues on even stock engines but with more boost the problems are exponential. This Vargas upgraded PCV valve, and an oil catch can, are what the N54 engine needs and may alleviate most of your oil and boost leak issues. The PCV valve is supposed to let oil either return to the oil pan or pass through the intake manifold and get burned up in the combustion chamber. However, BMW used a weak plastic vent valve that doesn't seal well when under boost. Instead of  closing and venting the oil out of the intake, it's forced through this valve and into the intake and coating your valves with oil residue and carbon. Most boost equals more oil forcing its way by. This upgraded N54 PCV valve uses higher grade materials, including aluminum, to provide a better seal and prevent oil from entering the intake. It's an easy install and a must-have item when considering any turbo work.
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Fuel Tank Breather Valve (US Models)
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:13332220
Part#: 13907614013
Ships in 1 Business Day
$ 80.58

This product was last offered at the strikethrough price on
06-21-2026

$ 51.92 USD
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$ 51.92 USD
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Bavarian Autosport - Corporate Logo
T#:640207
Part#: 11617501566
In Stock
Sale - Save 20% $ 32.99

This product was last offered at the strikethrough price on
05-03-2026

$ 26.39 USD
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Sale - Save 20%
$ 32.99

This product was last offered at the strikethrough price on
05-03-2026

$ 26.39 USD
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BMW has an ongoing issue with oil separators freezing in cold weather if driving is done before the vehicle is fully warmed up. There is often a howling noise followed by numerous oil leaks. The crankcase breather valve is used to purge the oil vapor from the engine block into the valve cover. However, sometimes condensation can cause it to freeze, causing the entire oil separator system to fail, crack, and disintegrate. Replace this and all the other components of the oil separator system to prevent damage to all the aspects of your engine. As long as you have everything off, you can rest assured that new parts will last and be reliable. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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NRW Design - Corporate Logo
T#:42436689
Part#: S65CCSK-2
Ships in 3 Business Days
$ 555.00 USD
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The ultimate choice for enthusiasts looking to protect their investment, extend engine life, and maintain top-tier performance
Bavarian Autosport - Corporate Logo
T#:638072
Part#: 11617504536
In Stock
Sale - Save 20% $ 26.99

This product was last offered at the strikethrough price on
05-03-2026

$ 21.59 USD
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Sale - Save 20%
$ 26.99

This product was last offered at the strikethrough price on
05-03-2026

$ 21.59 USD
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This is the BMW crankcase return line that goes from the intake manifold to the top CCV connecting hose. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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Bosch Oxygen Sensor - Post-Cat - E60 M5, E63 M6
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:380799
Part#: 11787836451
In Stock at Vendor
$ 155.99

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

$ 130.99 USD
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$ 130.99 USD
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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.

This is a Bosch O2 sensor - also known as a Lambda probe. Bosch is an OEM supplier to BMW.

Position: post-cat, after the catalytic converter (pre-cat). Bank 1 and Bank 2 use the same sensor (2 required per vehicle).

This item fits the following BMWs:
2006-2010 E60 BMW M5
2006-2010 E63 E64 BMW M6

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Bavarian Autosport - Corporate Logo
T#:579869
Part#: 54546
In Stock
Sale - Save 20% $ 26.99

This product was last offered at the strikethrough price on
05-03-2026

$ 21.59 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 26.99

This product was last offered at the strikethrough price on
05-03-2026

$ 21.59 USD
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OEM Bosch Post-Cat Oxygen Sensor, 690mm 11787589475 - F22 M235, F3X 3...
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:14686
Part#: 11787589475
In Stock
$ 223.99

This product was last offered at the strikethrough price on
04-30-2026

$ 172.99 USD
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$ 172.99 USD
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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 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!

This item fits the following BMW Chassis:
E82,E90,E92,E93,F30,F34

Fits BMW Engines including:
N55 - up to 08/2013

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Bosch - Pre Cat Bank 1 Oxygen Sensor (Priced Each) - F80, F82, M3, M4...
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:25042571
Part#: 11787848482
Ships in 1 Business Day
$ 250.99

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

$ 234.99 USD
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$ 234.99 USD
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NRW Design - Corporate Logo
T#:42436688
Part#: S65CCSK-1
Ships in 3 Business Days
$ 535.00 USD
Free Shipping on orders $49 and up
An essential upgrade for any enthusiast seeking to extend the life and preserve the performance of their BMW M3
Bavarian Autosport - Corporate Logo
T#:640206
Part#: 11617501563
In Stock
Sale - Save 20% $ 47.99

This product was last offered at the strikethrough price on
05-03-2026

$ 38.39 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 47.99

This product was last offered at the strikethrough price on
05-03-2026

$ 38.39 USD
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An integral part of the emissions system, the PCV valve lets the crankcase breathe. This allows proper intake and exhaust flow, resulting in proper running and operation. When the crankcase vent valve fails it can cause excessive oil consumption, engine fault codes, and poor idle. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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Oxygen Sensor - Priced Each
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:591943
Part#: 11787595353
In Stock at Vendor
$ 234.99

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

$ 210.99 USD
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$ 210.99 USD
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NRW Design - Corporate Logo
T#:42436687
Part#: S65CCSK
Ships in 3 Business Days
$ 395.00 USD
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BMW enthusiasts can enhance their engine's efficiency and longevity while maintaining factory-like fitment—all supported by the trusted performance experts at Turner Motorsport

OEM Bosch SCR Metering Valve - E70 X5 35d, E90 335d (M57 3.0L) ...
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:583740
Part#: 18307807206
Ships in 1 Business Day
$ 359.99

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

$ 348.99 USD
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$ 348.99 USD
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The Selective Catalytic Reduction (SCR) system on your diesel BMW reduces exhaust emissions by injecting diesel exhaust fluid (a mixture of urea and water) into the exhaust to neutralize pollutants. If your tank is empty or your metering valve has failed, your car will not start until the problem is remedied. Replace yours with an OEM Bosch to restore your emissions system and get your car back on the road! 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 DEF Tank Heater Circuit Kit - E70 X5 35d - F01C600251
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:28404655
Part#: F01C600251
Ships in 1 day
$ 418.99

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

$ 406.99 USD
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$ 406.99 USD
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The SCR reservoir heater, found in the DEF active tank, is a frequently failing component that can lead to emissions-related DTCs. When it fails, replacing the entire tank assembly is often necessary, which can be expensive if using Genuine parts.

Fortunately, Bosch offers a high-quality replacement heater and tank assembly, ensuring a seamless and reliable replacement process. Opting for Bosch means choosing a cost-effective repair solution that promises durability and longevity.

For a hassle-free replacement of your SCR heater, trust Bosch to deliver lasting performance.

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Bavarian Autosport - Corporate Logo
T#:639843
Part#: 11617501562
Special Order: No Guaranteed ETA
Sale - Save 15% $ 59.99

This product was last offered at the strikethrough price on
05-03-2026

$ 50.99 USD
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Sale - Save 15%
$ 59.99

This product was last offered at the strikethrough price on
05-03-2026

$ 50.99 USD
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An integral part of the emissions system, the PVC valve lets the crankcase breathe. This allows proper intake and exhaust flow, resulting in proper running and operation. Often split from underhood heat and age, this vents excess oil into the engine compartment. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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OEM Bosch Oxygen Sensor - 11761466063 - E21 E28 E30 E24
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:37575
Part#: 11761466063
Special Order: No Guaranteed ETA
$ 67.99

This product was last offered at the strikethrough price on
08-13-2026

$ 63.99 USD
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$ 63.99 USD
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Bosch OXYGEN SENSOR 11032

Fits BMW Engines including:
M10,M20,M30
 

1980+ E21 BMW 320i M10 1.8L
Up to 03/1987 E28 BMW 528e M20 2.7L
E28 BMW 533i M30 3.2L
up to 12/1984 E30 BMW 318i M10 1.8L
09/1981+ E24 BMW M30 3.2L

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Bavarian Autosport - Corporate Logo
T#:579880
Part#: 55080
In Stock
Sale - Save 20% $ 24.99

This product was last offered at the strikethrough price on
05-03-2026

$ 19.99 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 24.99

This product was last offered at the strikethrough price on
05-03-2026

$ 19.99 USD
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Cold climate version for extra insulation! Fits all E46 and Z4 chassis equipped with an M54 engine.

Elring Crank Case Vent Valve Gasket - M60 M62
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Elring - Corporate Logo
T#:362757
Part#: 11611729728
In Stock
$ 7.13

This product was last offered at the strikethrough price on
06-03-2026

$ 6.11 USD
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$ 6.11 USD
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This gasket seals the PCV valve to the valve cover. If this leaks, you maybe experience poor running conditions or check engine lights. Replace your leaking seal with a new Elring gasket to ensure long lasting reliability. 

Elring is one of the biggest OEM names in the manufacturing of high quality gaskets that are available for very affordable prices. Elring has supplied many automotive names for years with the gaskets that seal your car's components from day 1 so you can rest assured that these components will last for a long time to come!

Fits the following BMW engines:
M60 3.0L 4.0L
M62 4.4L

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Bavarian Autosport - Corporate Logo
T#:640502
Part#: 11617504535
In Stock
Sale - Save 20% $ 24.99

This product was last offered at the strikethrough price on
05-03-2026

$ 19.99 USD
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Sale - Save 20%
$ 24.99

This product was last offered at the strikethrough price on
05-03-2026

$ 19.99 USD
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Runs from the top of the oil separator up to rear of the intake manifold. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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Diesel Emissions Fluid Injector (Metering Unit)
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:39261786
Part#: 18308514448
Ships in 1 Business Day
$ 317.99

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

$ 293.99 USD
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$ 293.99 USD
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Oxygen Sensor
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:596872
Part#: 11787589139
Ships in 1 Business Day
$ 137.72

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

$ 129.79 USD
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$ 129.79 USD
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OEM Bosch Diesel Emissions Fluid Heater Assembly - E90 335d
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:596905
Part#: F01C600252
Ships in 1 Business Day
$ 721.60 USD
Free Shipping on orders $49 and up
A common source of issues, the DEF Heater Assembly can fail, requiring you to replace the entire DEF Active Tank. With this OEM Bosch DEF heater assembly, you can repair your Active Tank without needing to replace the entire tank, saving you a significant amount of money on repairs.
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Elring EGR O-Ring - E70, E90
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Elring - Corporate Logo
T#:13069389
Part#: 13547792098
Ships in 1 day
$ 3.99

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

$ 2.99 USD
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$ 2.99 USD
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O-Ring for EGR

Elring - Corporate Logo
T#:45483614
Part#: 593.210
Special Order: No Guaranteed ETA
$ 10.99 USD
Free Shipping on orders $49 and up
Attached to vehicles EGR cooler OE: 11618571005

Bosch Oxygen Sensor - Pre Catalytic Converter - E60, E63, E64 ...
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:591854
Part#: 11787512983
Back Ordered
$ 104.99

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

$ 73.99 USD
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$ 73.99 USD
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Length: 550mm
Elring - Corporate Logo
T#:54852025
Part#: 700.320
Special Order: No Guaranteed ETA
New Item
$ 7.99 USD
Free Shipping on orders $49 and up
This secondary air injection control valve gasket from Elring is the perfect solution for keeping your V10 running strong and clean.