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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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Packaged by Turner - Corporate Logo
T#:557341
Part#: 11111318185TMSKT
In Stock
Sale - Save 2% $ 85.93

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

$ 84.32 USD
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Sale - Save 2%
$ 85.93

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

$ 84.32 USD
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When your CPV O-ring fails it causes a slow oil leak on the passenger side of the engine, making an oily mess that frequently resembles a rear main seal leak. Replacing the CPV with an upgraded o-ring ensures a long-term solution to this common problem. 

The factory o-ring over time fails from heat cycling and oil exposure due to the Buna rubber used in OEM o-rings, while the included Viton Fluoroelastomer is resistant to a much higher temperature to ensure prolonged life without leaking. 

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Genuine Volkswagen Audi - Corporate Logo
T#:22558987
Part#: GUS052910A3
In Stock
$ 34.86 USD
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$ 34.86 USD
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For BMW enthusiasts committed to optimizing their vehicle's performance, the AdBlue Diesel Exhaust Fluid (DEF) - 9.46 Liters is the perfect solution. Engineered to enhance BMW diesel engines' efficiency, this DEF fluid ensures that your vehicle remains compliant with emission standards while operating at its peak.

  • Exceptional Purity: The AdBlue DEF Fluid - 9.46 Liters offers superior purity, safeguarding your BMW's exhaust system and reducing harmful emissions.
  • Emissions Compliance: Maintain your BMW's compliance with strict emission regulations, ensuring you can drive with peace of mind.
  • Extended Range: With 9.46 liters of DEF fluid, you'll enjoy an extended range before requiring a refill, providing convenience for your journeys.
  • Effortless Refilling: The user-friendly design of the container makes refilling your DEF reservoir a hassle-free task.
  • BMW Compatibility: This DEF fluid is tailored to meet BMW's stringent requirements, assuring compatibility with your vehicle.

Choose the AdBlue DEF Fluid - 9.46 Liters to enhance your BMW's efficiency and environmental responsibility. Drive confidently, knowing your vehicle is optimized for peak performance and emissions compliance.

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Packaged by Turner - Corporate Logo
T#:23913949
Part#: CRNKVENTKITKT
Ships in 5 Business Days
$ 224.99 USD
Free Shipping on orders $49 and up

Elevate your S63 4.4L engine's capabilities with our meticulously designed Crank Case Vent Hose Kit. Crafted from premium-grade materials, this kit ensures superior ventilation, mitigating pressure accumulation within the engine, thereby enhancing its overall performance.

Engineered to precise specifications, our kit seamlessly replaces the OEM vent hoses, guaranteeing a perfect fit. By reducing stress on the engine, it prolongs its lifespan and maintains peak functionality. Rely on this kit to provide unparalleled performance and unwavering reliability for your S63 4.4L engine.

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Packaged by Turner - Corporate Logo
T#:51356040
Part#: 059015LA02KT2KT
Ships on Oct 5, 2026
New Item
Sale - Save 19% $ 104.99

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

$ 84.77 USD
Free Shipping on orders $49 and up
Sale - Save 19%
$ 104.99

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

$ 84.77 USD
Free Shipping on orders $49 and up

On M52/S52-equipped BMWs, the factory crankcase ventilation (CCV) system is a notorious weak link. Between brittle plastic corrugated hoses that crumble from heat soak and an internal cyclone diaphragm prone to tearing, a failing CCV leads to massive oil consumption, vacuum leaks, and that dreaded "howling" whistle.

This kit addresses these issues with all new components and hardware. Both oil separator hoses, the cyclone separator itself, the mounting grommet, and the retaining bolts are included. Servicing this system is guaranteed to restore performance lost as a result of worn CCV components.

Kit includes:

Cyclone Separator/Crankcase Pressure Regulator Valve High Performance Silicone Breather Hose Return Hose Mounting Grommet Hex Bolt (3)

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Packaged by Turner - Corporate Logo
T#:24344785
Part#: M54OILSEPKT
In Stock
Sale - Save 23% $ 173.99

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

$ 133.54 USD
Free Shipping on orders $49 and up
Sale - Save 23%
$ 173.99

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

$ 133.54 USD
Free Shipping on orders $49 and up
If you need to perform a complete oil separator system service, this Level 2 kit provides you with all of the main components necessary to service your engine oil separator system. This Level 2 kit includes the following: Oil Separator Hose from oil separator to dipstick tube Hose from oil separator to valve cover Hose from intake manifold back to the connector hose Hose from oil separator up to the intake manifold Throttle body gasket Throttle body inlet boot ICV rubber grommet Oil dipstick tube o-ring seal It is highly recommended to replace the oil dipstick tube with the updated design by BMW as this also a common place for sludge to build up.
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Genuine MINI - Corporate Logo
T#:22484
Part#: 16132757327
In Stock
Sale - Save 7% $ 305.12

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

$ 282.24 USD
Free Shipping
Sale - Save 7%
$ 305.12

This product was last offered at the strikethrough price on
06-25-2026

$ 282.24 USD
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Genuine MINI ACTIVATED CHARCOAL FILTER
Fits BMW Engines including:
N12,N14,N16,N18


Packaged by Turner - Corporate Logo
T#:555298
Part#: 11617501566KT6
In Stock
Sale - Save 19% $ 181.99

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

$ 147.02 USD
Free Shipping
Sale - Save 19%
$ 181.99

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

$ 147.02 USD
Free Shipping

The plastic hoses and oil separator can crack or become faulty, leading to vacuum leaks or oil leaks. This is caused by the stress the plastic components are exposed to during heating and cooling cycles, especially if the vehicle is not brought up to operating temperature during driving in cold weather climates.

This kit includes the needed hoses, oil separator, mounting grommet, and hardware.

Fits the following BMWs:
2000-2003 E39 BMW 530i

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Genuine MINI - Corporate Logo
T#:14672
Part#: 11787548961
In Stock
Sale - Save 5% $ 245.03

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

$ 232.78 USD
Free Shipping
Sale - Save 5%
$ 245.03

This product was last offered at the strikethrough price on
06-25-2026

$ 232.78 USD
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Genuine MINI LAMBDA MONITOR SENSOR
Fits BMW Engines including:
N12,N14,N16,N18,N51


Genuine MINI - Corporate Logo
T#:7077
Part#: 11780872674
Ships in 3 Business Days
14% off MSRP $ 385.56

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

$ 329.88 USD
Free Shipping
14% off MSRP
$ 385.56

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

$ 329.88 USD
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Genuine MINI ENGINE OXYGEN SENSOR 11780872674.--

This item fits the following BMWs:
MINI Cooper - Mini Cooper, Mini Cooper Convt, Mini Cooper S, Mini Cooper S Convt

--. Fits BMW Engines including:
W10,W11

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Genuine MINI - Corporate Logo
T#:44901
Part#: 16126766392
Ships in 3 Business Days
8% off MSRP $ 424.45

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

$ 389.99 USD
Free Shipping
8% off MSRP
$ 424.45

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

$ 389.99 USD
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Enhance your Mini's air filtration system with the Genuine Mini Activated Charcoal Filter.

This filter effectively removes harmful pollutants and odors from the air inside your Mini, ensuring a cleaner and healthier driving environment. Crafted with genuine Mini quality and precision, it offers superior filtration performance and durability. With its easy installation and perfect fitment, it provides a hassle-free solution to maintain air quality and comfort in your Mini.

Benefits:

  • Effectively removes harmful pollutants and odors
  • Ensures a cleaner and healthier driving environment
  • Genuine Mini quality and precision for superior performance
  • Durable construction for long-lasting use
  • Easy installation for convenience
  • Perfect fitment for seamless integration
Genuine MINI ACTIVATED CHARCOAL FILTER
Fits BMW Engines including:
N51,W10,W11

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Genuine MINI - Corporate Logo
T#:44287
Part#: 16117158983
Ships in 3 Business Days
7% 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.

$ 415.99 USD
Free Shipping
7% 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.

$ 415.99 USD
Free Shipping
Genuine MINI LEAK DIAGNOSIS PUMP
Fits BMW Engines including:
W10,W11

Genuine MINI - Corporate Logo
T#:521021
Part#: 13907621174
Ships in 3 Business Days
7% off MSRP $ 130.99

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

$ 121.99 USD
Free Shipping
7% off MSRP
$ 130.99

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

$ 121.99 USD
Free Shipping

Upgrade your Mini Cooper's fuel system with this high-quality Fuel Tank Breather Hose. Designed to meet Mini Cooper specifications, this hose ensures proper ventilation and helps maintain the integrity of your fuel tank. Prevent fuel leaks and maintain optimal performance by replacing your worn or cracked breather hose with this durable and reliable replacement. Experience improved fuel efficiency and reliability for your Mini Cooper with this essential component.

Benefits:

  • Ensures proper ventilation for the fuel tank
  • Maintains fuel system integrity
  • Prevents fuel leaks
  • Enhances fuel efficiency and reliability
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Packaged by Turner - Corporate Logo
T#:555299
Part#: 11151406788KT3
Back Ordered
$ 326.99 USD
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$ 326.99 USD
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The rubber hoses and oil separator can crack or become faulty, leading to vacuum leaks or oil leaks. This is caused by the stress the components are exposed to during heating and cooling cycles, especially if the vehicle is not brought up to operating temperature during driving in cold weather climates.

This kit includes the needed hoses, oil separator, mounting grommet, and hardware.

Fits the following BMWs:
1998-2003 E39 BMW M5

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Genuine MINI - Corporate Logo
T#:48485
Part#: 18307598251
In Stock
$ 9.19 USD
Free Shipping on orders $49 and up

Genuine MINI Stud Bolt M8X31 for Mini

Ensure a secure installation of your Mini's exhaust manifold with the Genuine MINI Stud Bolt M8X31. This metal double-threaded stud bolt is designed for use near the catalytic converter, providing a reliable solution for broken or rusted exhaust manifold studs.

Benefits:

  • Genuine MINI quality ensures durability and reliability
  • Designed for use near the catalytic converter for secure installation
  • Ideal replacement for broken or rusted exhaust manifold studs
Genuine MINI STUD BOLT
Fits BMW Engines including:
N14,N18

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Packaged by Turner - Corporate Logo
T#:55353594
Part#: 11787545074/5KT2
In Stock
New Item
$ 366.99 USD
Free Shipping on orders $49 and up
Sluggish oxygen sensors do a lot more than just light up your dashboard with an annoying Check Engine Light—they directly choke your BMW’s performance.

Packaged by Turner - Corporate Logo
T#:55317713
Part#: BFR1/2O2SKT2
In Stock
New Item
$ 400.99

This product was last offered at the strikethrough price on
07-14-2026

$ 337.99 USD
Free Shipping on orders $49 and up
$ 337.99 USD
Free Shipping on orders $49 and up
Over time, that degradation robs your BMW of its crisp throttle response, tanks your fuel economy, and leaves you staring at a failed emissions ticket

Packaged by Turner - Corporate Logo
T#:55857772
Part#: 11787589475KT2
In Stock
New Item
$ 335.99 USD
Free Shipping on orders $49 and up
Extreme exhaust heat and carbon buildup degrade your factory oxygen sensors over time, sending lazy data to your DME and robbing you of performance.
Packaged by Turner - Corporate Logo
T#:56110313
Part#: 11787558055KT
In Stock
New Item
$ 307.99 USD
Free Shipping on orders $49 and up
Your engine's air fuel ratio needs to be dead on. Worn out factory pre-cat oxygen sensors delay vital data to the DME, leading to sub optimal fueling, lost horsepower, and dangerous hesitation under load.
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Packaged by Turner - Corporate Logo
T#:221962
Part#: TMS221962
Ships in 3 Business Days
$ 458.99 USD
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$ 458.99 USD
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The BMW N52 engine was deisgned with a crankcase vent system that relies on a heated oil separator valve to separate vapor from the liquid oil. Under ideal circumstances, the oil vapor would pass back into the intake and get burned up during normal combustion. The liquid oil would follow a path back down into the oil pan and be reused. This system is environmentally friendly but plagued with problems. The heating elements can fail or oil and carbon particles can block the oil separator valve. With no escape, the oil will continue to pool and collect in the valve cover or make its way into the combustion chamber leading to excessive oil consumption, blue smoke from the exhaust, idle and running issues. These issues are worse in colder climates where the freezing temperatures create an oil sludge condition that is impossible to clear. The plastic hoses can become brittle and crack which leads to vacuum leaks and oil leaks. Thankfully, the CCV is replaceable on the early N52 engines (2006 and some 2007 models) and should be inspected during a major service and any time the valve cover is off. Oil can also back up into the throttle body, which is easier to check than the oil separator itself. Later N52 engines do not have a serviceable oil vent as it is integrated into the valve cover and not a separate part.

This is a kit containing the oil separator, the vent hoses, and the intake manifold gaskets that are done during a typical oil separator replacement. Complete kit includes:
  • 11617531423, Genuine BMW oil separator
  • 11617559530, vent hose
  • 11157522931, oil separator hose
  • 11157567801, return hose
  • 11157537701, extraction hose
  • 11617547242, intake manifold gaskets (set of 6)
    The intake manifold must be removed to access the oil separator so new profile gaskets are included. We also recommend (but not required) a new oil separator fitting on the intake manifold because it's one of the heated elements that vaporizes the oil as it enters the intake.

    The oil separator can be replaced on its own but for a complete service we also recommend replacing the oil separator hoses and cleaning the valve cover. Any valve cover or intake manifold work should include a new oil separator valve.

    This kit fits the following BMWs:
    -10/2005 E90 BMW 325xi 330xi - Sedan
    -10/2005 E91 BMW 325xi - Wagon
    -10/2005 E60 BMW 525xi 530xi
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    Genuine MINI - Corporate Logo
    T#:405498
    Part#: 07147544063
    Ships in 3 Business Days
    $ 3.99

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

    $ 2.99 USD
    Free Shipping on orders $49 and up
    $ 2.99 USD
    Free Shipping on orders $49 and up

    Genuine MINI - Corporate Logo
    T#:14673
    Part#: 11787549860
    Ships in 3 Business Days
    16% off MSRP $ 365.17

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

    $ 306.29 USD
    Free Shipping
    16% off MSRP
    $ 365.17

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

    $ 306.29 USD
    Free Shipping
    Genuine MINI REGULATING LAMBDA PROBE
    Fits BMW Engines including:
    N14,N51


    Genuine MINI - Corporate Logo
    T#:14687
    Part#: 11787590713
    Ships in 3 Business Days
    10% off MSRP $ 427.99

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

    $ 386.99 USD
    Free Shipping
    10% off MSRP
    $ 427.99

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

    $ 386.99 USD
    Free Shipping

    Genuine MINI Regulating Lambda Probe L=320mm

    A high-quality replacement part engineered for precise compatibility with MINI vehicles. With its durable construction and reliable performance, this lambda probe ensures optimal engine function and emissions control.

    • Designed specifically for MINI vehicles
    • Ensures precise regulation of fuel-air mixture
    • Helps maintain optimal engine performance
    • Facilitates efficient emissions control
    Genuine MINI REGULATING LAMBDA PROBE
    Fits BMW Engines including:
    N12

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    Genuine MINI - Corporate Logo
    T#:593913
    Part#: 11667570813KT1
    Ships in 3 Business Days
    $ 437.99 USD
    Free Shipping
    $ 437.99 USD
    Free Shipping
    Genuine MINI - Corporate Logo
    T#:40582
    Part#: 12527543317
    Ships in 6 Business Days
    $ 9.99 USD
    Free Shipping on orders $49 and up
    Genuine MINI SOCKET HOUSING
    Fits BMW Engines including:
    N12,N14,N51



    Genuine MINI - Corporate Logo
    T#:14638
    Part#: 11667550007
    Ships in 6 Business Days
    7% off MSRP $ 159.99

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

    $ 148.99 USD
    Free Shipping
    7% off MSRP
    $ 159.99

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

    $ 148.99 USD
    Free Shipping
    Genuine MINI SUCKING JET PUMP WITH LINES
    Fits BMW Engines including:
    W11

    Genuine MINI - Corporate Logo
    T#:45305
    Part#: 16136801158
    Ships in 3 Business Days
    7% 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.

    $ 415.99 USD
    Free Shipping
    7% 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.

    $ 415.99 USD
    Free Shipping
    Genuine MINI LEAK DIAGNOSIS PUMP
    Fits BMW Engines including:
    W10,W11

    Packaged by Turner - Corporate Logo
    T#:339000
    Part#: TEN9949O2S
    Ships in 6 Business Days
    Starting at $ 12.95 USD
    Free Shipping on orders $49 and up
    Starting at $ 12.95 USD
    Free Shipping on orders $49 and up
    This weld-in bung allows an O2 sensor to be screwed into your exhaust system. It's required for custom exhaust systems, and is also useful for air/fuel ratio measurements when dyno testing.

    Genuine MINI - Corporate Logo
    T#:37691
    Part#: 11787547747
    Special Order: No Guaranteed ETA
    6% off MSRP $ 51.99

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

    $ 48.99 USD
    Free Shipping on orders $49 and up
    6% off MSRP
    $ 51.99

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

    $ 48.99 USD
    Free Shipping on orders $49 and up
    Genuine MINI LAMBDA-PROBE BRACKET
    Fits BMW Engines including:
    N14,N51


    Packaged by Turner - Corporate Logo
    T#:555305
    Part#: 11157840446KT10
    Ships on Nov 16, 2026
    $ 284.99

    This product was last offered at the strikethrough price on
    07-06-2026

    $ 282.99 USD
    Free Shipping
    $ 282.99 USD
    Free Shipping

    The hoses and oil separator can crack or become faulty, leading to vacuum leaks or oil leaks. This is caused by the stress the plastic components are exposed to during heating and cooling cycles, especially if the vehicle is not brought up to operating temperature during driving in cold weather climates.

    This kit includes the needed hoses, oil separator, and hardware.

    Fits the following BMWs:
    2001-09/2004 E46 BMW M3 - Manual Transmission

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    Packaged by Turner - Corporate Logo
    T#:555304
    Part#: 11157840446KT9
    Ships on Nov 16, 2026
    $ 413.99

    This product was last offered at the strikethrough price on
    07-06-2026

    $ 412.99 USD
    Free Shipping
    $ 412.99 USD
    Free Shipping

    The hoses and oil separator can crack or become faulty, leading to vacuum leaks or oil leaks. This is caused by the stress the plastic components are exposed to during heating and cooling cycles, especially if the vehicle is not brought up to operating temperature during driving in cold weather climates.

    This kit includes the needed hoses, oil separator, and hardware.

    Fits the following BMWs:
    09/2004-2006 E46 BMW M3 - Manual Transmission

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    Packaged by Turner - Corporate Logo
    T#:555308
    Part#: 11151705237KT1
    Back Ordered
    Sale - Save 6% $ 208.99

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

    $ 196.41 USD
    Free Shipping
    Sale - Save 6%
    $ 208.99

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

    $ 196.41 USD
    Free Shipping

    The rubber hoses and oil separator can crack or become faulty, leading to vacuum leaks or oil leaks. This is caused by the stress the components are exposed to during heating and cooling cycles, especially if the vehicle is not brought up to operating temperature during driving in cold weather climates.

    This kit includes the needed hoses, oil separator, and hardware.

    Fits the following BMWs:
    1999-2006 E53 BMW with M62 4.4L 4.6L

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