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Oil Separation & Breather System

Every car has a crankcase vent system that is supposed to suppress oil from making it into the intake ports and combustion chamber. A good functioning system will separate oil from the atmosphere and return it to the oil pan (or collect it in a catch can) while allowing the leftover vapors to burn in the combustion chamber or recirculate through the system. This has always been known as a PCV system (Positive Crankcase Ventilation) but BMW has several other names for it - oil separator, crankcase vent (CCV), and cyclonic separator. Failures in the system will allow raw oil to enter the intake and eventually into the engine itself which can have disastrous effects on engine performance and longevity. As emissions regulations on oil and gas venting have gotten more stringent the PCV systems have gotten more complex and failure prone. And because the CCV is intertwined with other systems you could experience rough running, loss of power, higher oil consumption, misfiring, stalling, or other annoying issues. There is no replacement interval for these so we recommend inspecting your crankcase vent system as part of your regular maintenance routines. Symptoms of a bad crankcase vent are: whitish or yellowish film on the underside of the oil cap, whistling/squealing noises (not caused by a belt), suction on the oil cap that makes it hard to unscrew, large amounts of white smoke from the exhaust, and excessive oil consumption.

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Engine Vent Hose 11151740393
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URO - Corporate Logo
T#:6703
Part#: 11151740393
Ships on Oct 5, 2026
$ 5.89 USD
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ENGINE VENT HOSE 11151740393
Rein PCV Hose - E36, Z3
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Rein - Corporate Logo
T#:379766
Part#: 11151740393
In Stock
$ 9.99

This product was last offered at the strikethrough price on
03-24-2026

$ 7.19 USD
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$ 7.19 USD
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Attaches the PCV to the oil dipstick tube
Bremmen Parts - Corporate Logo
T#:30629689
Part#: 11157532649
In Stock
Sale - Save 24% $ 15.99

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

$ 12.23 USD
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Sale - Save 24%
$ 15.99

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

$ 12.23 USD
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Bremmen Parts - Corporate Logo
T#:8741202
Part#: 11151705272B
In Stock
Sale - Save 17% $ 22.99

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

$ 19.07 USD
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Sale - Save 17%
$ 22.99

This product was last offered at the strikethrough price on
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$ 19.07 USD
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BMW has an issue with oil separators freezing in cold weather if the engine is not fully warmed up during driving. Common symptoms are a howling noise followed by oil leaks. Crankcase breather valve used to purge the oil vapor from the engine block into the valve cover. This valve has 4 hoses connected to it, running to dipstick, valve cover, air intake.
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Victor Reinz - Corporate Logo
T#:592731
Part#: 07119906360
In Stock
$ 3.99

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

$ 2.99 USD
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$ 3.99

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

$ 2.99 USD
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If this gasket fails it can cause oil leaks and other issues. Replace it at any sign of failure!
ECS - Corporate Logo
T#:33412930
Part#: 12521706096
In Stock
Sale - Save 11% $ 10.99

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

$ 9.78 USD
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Sale - Save 11%
$ 10.99

This product was last offered at the strikethrough price on
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$ 9.78 USD
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Includes connector housing with terminals and seals. Commonly used for the idle air control valve (IACV).

ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need.

Each connector includes an additional terminal in case one becomes lost or damaged during installation.

*OEM cross reference PN# 12521706096 - Commonly used for the idle air control valve (IACV).

Please reference the original part number from the existing connector to confirm fitment, before ordering.

Suggested tools:

Suggested crimping pliers: T#387193
Wire De-pin tools:
12pc De-Pin Tool Set - T#386379
23pc De-Pin Tool Set - T#641943

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Bremmen Parts - Corporate Logo
T#:8741203
Part#: 11151705237
In Stock
Sale - Save 61% $ 15.99

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

$ 6.30 USD
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Sale - Save 61%
$ 15.99

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

$ 6.30 USD
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Critical crankcase ventilation cyclone separator - great replacement or custom install! ​Failure of the oil separator commonly causes problems related to smoking or a check engine light. Featuring an approximately ¾” air inlet/outlet and ½” oil drain outlet, this oil separator/CCV commonly found in custom installations on many vehicles.
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Elring Crank Case Vent Valve Gasket - M60 M62
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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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Rein - Crankcase Vent Hose E46 Z3 M Roadster, E46 Z3 M Coupe ...
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Rein - Corporate Logo
T#:34181269
Part#: 11157831311
In Stock
$ 11.99 USD
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Crankcase Vent Hose ABV0329 is an essential component designed for BMW engines, ensuring optimal performance of the crankcase ventilation system. This high-quality vent hose plays a critical role in regulating and redirecting excess gases from the crankcase back into the engine's intake, reducing harmful emissions and preventing pressure buildup. Crankcase Vent Hose ABV0329 helps maintain engine efficiency and protects against potential damage caused by over-pressurization or oil leaks.

Made from durable, heat-resistant materials, this hose is built to withstand the high temperatures and pressures common in BMW engines. It is a direct-fit replacement, making installation simple and efficient for both professionals and DIY mechanics. Available from Turner Motorsport, Crankcase Vent Hose ABV0329 is the perfect solution for restoring and maintaining your BMW’s crankcase ventilation system.

Key Benefits:

  • Ensures proper crankcase ventilation for optimal engine performance
  • Reduces harmful emissions by redirecting excess gases into the intake
  • Prevents pressure buildup and protects against oil leaks
  • Constructed from durable, heat-resistant materials for long-lasting reliability
  • Direct-fit replacement, ensuring easy installation for various BMW models
  • Available from Turner Motorsport, a trusted source for BMW performance parts
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Bremmen Parts - Corporate Logo
T#:558205
Part#: 11617533329
In Stock
Sale - Save 30% $ 6.99

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

$ 4.89 USD
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Sale - Save 30%
$ 6.99

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

$ 4.89 USD
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Seals the PCV angle connector to the intake manifold
Oil Separator Valve
5X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Hengst - Corporate Logo
T#:22064588
Part#: AS819M
In Stock
$ 41.99

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

$ 31.99 USD
Limited Qty Sale
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$ 41.99

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

$ 31.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
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.
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Rein Return Pipe - E39, E46, E53, E60, E83, Z3, Z4
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Rein - Corporate Logo
T#:375092
Part#: 11617504536
In Stock
$ 19.99 USD
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$ 19.99 USD
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Runs from the intake manifold back to connecting hose


Packaged by Turner - Corporate Logo
T#:221962
Part#: TMS221962
Ships in 2 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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    Crankcase Vent Hose - From Valve Cover to Oil Separator - E46 E39 E6...
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    URO - Corporate Logo
    T#:2853
    Part#: 11611432559
    Ships in 1 Business Day
    $ 14.99 USD
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    $ 14.99 USD
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    This Crankcase Vent Hose - From Valve Cover to Oil Separator fits BMWs with the M52 or M54 6 cylinder engine including E46 323i 325i 328i 330i E39 525i 528i 530i E60 525i 530i X3 2.5i 3.0i X5 3.0i Z3 2.5 2.8 3.0i Z4 2.5i 3.0i.

    This item fits the following BMWs:
    1999-2005 E46 BMW 323i 323ci 328i 328ci 330i 330ci 330xi
    1999-2005 E46 BMW 325i 325ci 325xi - only with M54 engine
    1999-2003 E39 BMW 528i 528i 530i
    2004-2005 E60 BMW 525i 525xi 530i 530xi
    2004-2006 E83 BMW X3 2.5i X3 3.0i
    2000-2006 E53 BMW X5 3.0i
    1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8i Z3 3.0i
    2003-2006 E85 BMW Z4 2.5i Z4 3.0i
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    Febi - Corporate Logo
    T#:359557
    Part#: 11157532629
    In Stock at Vendor
    $ 23.28 USD
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    $ 23.28 USD
    Free Shipping on orders $49 and up
    From oil separator to dipstick tube

    URO Crankcase Ventilation Hose - BMW M52TU M54
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    URO - Corporate Logo
    T#:377307
    Part#: 11157532649
    Ships in 1 Business Day
    $ 12.99 USD
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    $ 12.99 USD
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    From oil separator to dipstick tube
    BMW Breather Valve
    We Price Match - Give Us A Call or Chat!
    Febi - Corporate Logo
    T#:17339405
    Part#: 11127537733
    In Stock at Vendor
    $ 27.99

    This product was last offered at the strikethrough price on
    05-29-2026

    $ 19.99 USD
    $ 19.99 USD
    Are you experiencing a slight loss of power? This pressure regulator valve repair kit could easily be the culprit. With a bad gasket or weak spring you could be losing pressure, resulting in less power.
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    Hose - From Oil Separator to Oil Dipstick Tube - E46 E39
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    Rein - Corporate Logo
    T#:2879
    Part#: 11157532629
    In Stock at Vendor
    $ 11.99

    This product was last offered at the strikethrough price on
    03-26-2026

    $ 10.99 USD
    Free Shipping on orders $49 and up
    $ 10.99 USD
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    This is the updated hose that goes from the Crankcase Oil Separator Valve to the oil dipstick tube. This tube tends to get plugged with oil sludge and becomes brittle and cracks. It fits E46 323i 323ci 325i (M54) 325ci (M54) 325xi 328i 328ci 330i 330ci 330xi - E39 525i 530i - E60 525i 530i 2004-2005 - X3 2.5i 3.0i 2004-2006 - Z3 2.5i 3.0i - Z4 2.5i 3.0i 2003-2006.
    In german, Rein means Pure. In the automotive industry the Rein name has quickly come to represent quality. With fitments for some of the world’s finest automobiles including BMW and Mini and guaranteed OE quality, Rein is a name you can trust.

    This item fits the following BMWs:
    2001-2005 E46 BMW 325i 325ci 325xi Only for cars with M54 engine
    1999-2005 E46 BMW 323i 323ci 328i 328ci 330i 330ci 330xi
    2001-2003 E39 BMW 525i 530i
    2004-2005 E60 BMW 525i 525xi 530i 530xi
    2004-2006 E83 BMW X3 2.5i X3 3.0i
    2001-2002 Z3 BMW Z3 2.5i Z3 3.0i
    2003-2005 Z4 BMW Z4 2.5i Z4 3.0i
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    Crankcase Ventilation Hose
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    URO - Corporate Logo
    T#:378279
    Part#: 11617533398
    Ships in 1 Business Day
    $ 21.99 USD
    Free Shipping on orders $49 and up
    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.
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    Vacuum Pipe
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    Rein - Corporate Logo
    T#:17704694
    Part#: 11157603816
    Ships in 3 Business Days
    $ 35.99 USD
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    Victor Reinz - Corporate Logo
    T#:19104
    Part#: 11151747978
    Ships in 1 Business Day
    $ 5.69

    This product was last offered at the strikethrough price on
    06-05-2026

    $ 5.68 USD
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    $ 5.68 USD
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    O-RING 11151747978 Manufactured by Reinz

    Oil Separator Valve
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    Rein - Corporate Logo
    T#:594299
    Part#: 11617531423
    Ships in 3 Business Days
    $ 120.81 USD
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    $ 120.81 USD
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    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.
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    "Cold Climate" Crankcase Pressure Regulator Valve
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    URO - Corporate Logo
    T#:376770
    Part#: 11617533400
    Ships in 1 Business Day
    $ 70.99

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

    $ 40.99 USD
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    $ 40.99 USD
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    Commonly referred to as the "oil separator" or PCV


    Crankcase Vent Hose - Cylinders 5-8
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    Rein - Corporate Logo
    T#:384972
    Part#: 11617547186
    Ships in 3 Business Days
    $ 59.99 USD
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    $ 59.99 USD
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    Should be replaced anytime leaks are detected
    Febi - Corporate Logo
    T#:6707
    Part#: 11157532649
    In Stock at Vendor
    $ 19.12

    This product was last offered at the strikethrough price on
    05-29-2026

    $ 17.04 USD
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    $ 17.04 USD
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    ENGINE VENT HOSE 11157532649
    Oil Return Hose
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    URO - Corporate Logo
    T#:592793
    Part#: 11157560068
    Ships in 1 Business Day
    $ 9.99 USD
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    Hose that attaches between the crankcase vent and the oil return pipe

    Pressure Regulator Valve Repair Kit
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    URO - Corporate Logo
    T#:600041
    Part#: 11127547058
    Ships in 1 Business Day
    $ 14.99 USD
    Free Shipping on orders $49 and up

    OEM Rein Oil Separator Vent Hose - E60/1 E90/1 N52
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    Rein - Corporate Logo
    T#:402020
    Part#: 11617522933
    Ships in 1 Business Day
    $ 19.99 USD
    Free Shipping on orders $49 and up
    If your BMW has a damaged vent hose, be sure to replace it to restore functionality of this rather important emissions system.

    Crankcase Ventilation Dipstick Hose - BMW M52TU M54
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    URO - Corporate Logo
    T#:359570
    Part#: 11157532629
    Ships in 1 Business Day
    $ 12.99 USD
    Free Shipping on orders $49 and up

    This tube runs from the oil separator to the lower dipstick tube.

     

    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.

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    Rein Crankcase Ventilation Hose - Cylinders 1-4
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    Rein - Corporate Logo
    T#:17738390
    Part#: 11617563476
    Ships in 3 Business Days
    $ 46.99 USD
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    $ 46.99 USD
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    Manufactured with high-quality materials to withstand heat, dirt, and debris, matching OE expectations.

    Rein Crank Case Ventilation Valve
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    Rein - Corporate Logo
    T#:17704764
    Part#: 11158647298
    In Stock at Vendor
    $ 61.80 USD
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    Designed to be a direct fit for OEM hoses, Rein has replacements for an affordable cost.

    Vargas Turbo Technologies - Corporate Logo
    T#:557961
    Part#: VTT-PCV-ADAPTER
    Ships in 10 Business Days
    $ 145.99 USD
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    $ 145.99 USD
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    Vargas Turbo has you covered when you are installing a custom turbo setup. With all of the adapters you need and all the valves necessary, the only real limiting factor is your imagination!

    This is the adapter fitting that is required to convert your N54 to external PCV if you want to keep your crankcase under vacuum at idle, and anytime you have a vacuum condition in your intake manifold. They are made from 6061-T6 with black anodizing for a long-lasting finish. Includes complete adapter, with all o-rings, and retaining clip.

    This must be used in conjunction with  the Vargas billet check valve, and PCV delete fitting or requires plugging of the intake PCV ports. Installs inline on the throttle body, and adds a -8AN male to adapt to a catch cans, or any custom set up.

    Made from 6061-T6 with black anodizing for a long-lasting finish. Includes complete adapter, with all o-rings, and retaining clip

    This part fits the following BMW engines: 
    2006-2012 N54

     

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    Crankcase Vent Hose - Cylinders 1-4
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    Rein - Corporate Logo
    T#:384973
    Part#: 11617547185
    Ships in 3 Business Days
    $ 57.99 USD
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    $ 57.99 USD
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    Should be replaced anytime leaks are detected
    Upper Oil Separator Vent Tube
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    Rein - Corporate Logo
    T#:384805
    Part#: 11611440317
    Ships in 3 Business Days
    $ 20.30 USD
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    Return Pipe
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    URO - Corporate Logo
    T#:372847
    Part#: 11617504536
    Ships in 1 Business Day
    $ 16.99 USD
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    $ 16.99 USD
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    Runs from the intake manifold back to connecting hose
    Rein - Corporate Logo
    T#:45723145
    Part#: 11157563506
    Ships in 3 Business Days
    $ 19.99 USD
    Free Shipping on orders $49 and up
    The Pressure Control Ventilation (PCV) valve is designed to route high-pressure blow-by gases from the crankcase into the intake manifold, relieving excess pressure while recycling gases back into the combustion process. When the PCV valve fails, it can lead to excessive oil consumption, rough idle, and stored engine fault codes. Replacing a worn or faulty valve restores proper crankcase ventilation, smooths out idle, clears codes, and helps keep your engine performing at its best.
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    Oil Separator
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    URO - Corporate Logo
    T#:555633
    Part#: 11151705237
    Ships in 1 Business Day
    $ 10.99

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

    $ 9.99 USD
    Free Shipping on orders $49 and up
    $ 9.99 USD
    Free Shipping on orders $49 and up
    Critical crankcase ventilation cyclone separator - great replacement or custom install!

    URO PCV Valve - Left Cylinder Bank - BMW N73 6.0L
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    URO - Corporate Logo
    T#:592794
    Part#: 11157563505
    Ships in 1 Business Day
    $ 30.99 USD
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    When the crankcase vent valve fails it can cause excessive oil consumption, engine fault codes and poor idle.

    Febi Oil Separator - E53
    We Price Match - Give Us A Call or Chat!
    Febi - Corporate Logo
    T#:363700
    Part#: 11151705237
    In Stock at Vendor
    $ 21.99

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

    $ 20.99 USD
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    $ 20.99 USD
    Free Shipping on orders $49 and up
    Critical crankcase ventilation cyclone separator - great replacement or custom install!
    BMW Oil Separator Valve | E38 E39 540i 740i 740iL M62 4.4L Engine ...
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    Rein - Corporate Logo
    T#:39059263
    Part#: 11151705272
    In Stock at Vendor
    $ 25.00 USD
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    $ 25.00 USD
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    BMW Oil Separator Valve | E38 E39 540i 740i 740iL M62 4.4L Engine is an essential component designed to maintain optimal engine performance by purging oil vapors from the engine block into the valve cover. This valve features four hoses connecting it to the dipstick, valve cover, and air intake system, ensuring efficient crankcase ventilation. BMW engines, especially in colder climates, are known to experience issues with oil separators freezing if the engine isn't properly warmed up, leading to symptoms such as howling noises followed by oil leaks.

    • Effectively purges oil vapors from the engine block to maintain clean operation
    • Designed for BMW E38 and E39 models with M62 4.4L engine
    • Helps prevent oil separator freezing in cold weather conditions
    • Features four hoses connected to the dipstick, valve cover, and air intake for optimal ventilation
    • Reduces engine sludge buildup, preventing potential damage and maintaining efficiency
    • Durable construction to withstand high temperatures and the demands of the engine

    Replace a worn oil separator valve to maintain the proper ventilation and efficiency of your BMW engine, preventing oil leaks and other performance issues.

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    Rein - Corporate Logo
    T#:45723146
    Part#: 11157563505
    Ships in 3 Business Days
    $ 19.99

    This product was last offered at the strikethrough price on
    04-28-2026

    $ 15.99 USD
    Free Shipping on orders $49 and up
    $ 15.99 USD
    Free Shipping on orders $49 and up
    The Pressure Control Ventilation (PCV) valve is designed to route high-pressure blow-by gases from the crankcase into the intake manifold, relieving excess pressure while recycling gases back into the combustion process. When the PCV valve fails, it can lead to excessive oil consumption, rough idle, and stored engine fault codes. Replacing a worn or faulty valve restores proper crankcase ventilation, smooths out idle, clears codes, and helps keep your engine performing at its best.
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    Febi Crankcase Ventilation Hose - E34
    We Price Match - Give Us A Call or Chat!
    Febi - Corporate Logo
    T#:381678
    Part#: 11151708801
    Ships in 1 Business Day
    $ 11.99

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

    $ 9.99 USD
    Free Shipping on orders $49 and up
    $ 9.99 USD
    Free Shipping on orders $49 and up
    Prone to cracking and breaking.

    Crankcase Ventilation Hose
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    URO - Corporate Logo
    T#:373085
    Part#: 11151708801
    In Stock
    $ 8.03 USD
    Free Shipping on orders $49 and up
    The rubber breather pipes used a number of BMW applications are prone to cracking. Over the years, the engine heat and weather can take their toll and either weaken or cause breaks in these hoses. Your engine begins to run much worse due to massive vacuum leaks.
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    Rein - Corporate Logo
    T#:55821694
    Part#: 11127547058
    Ships in 3 Business Days
    New Item
    $ 16.99 USD
    Free Shipping on orders $49 and up
    This Rein Automotive repair kit allows you to service the internal components of the crankcase breather valve independently. Instead of replacing the entire, costly valve cover or manifold assembly, this kit provides the exact wear items required to rebuild the factory housing back to original operating specifications. All components are manufactured to strict OE tolerances. The diaphragm is molded from premium, oil-resistant elastomers engineered to withstand prolonged exposure to aggressive synthetic lubricants, fuel vapors, and extreme under-hood heat cycles without losing its elasticity or sealing profile.
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    Genuine BMW - Corporate Logo
    T#:149270
    Part#: 64111368684
    Ships in 1 day
    8% off MSRP $ 12.99

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

    $ 11.99 USD
    Free Shipping on orders $49 and up
    8% off MSRP
    $ 12.99

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

    $ 11.99 USD
    Free Shipping on orders $49 and up


    Genuine BMW Vacuum Hose White - 2X4
    This item fits the following BMW Chassis:
    E30 M3,E34 M5,E46 M3,E30,E34,E46

    Genuine BMW - Corporate Logo
    T#:32270
    Part#: 11157513756
    Ships in 2 Business Days
    Sale - Save 16% $ 177.99

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

    $ 148.91 USD
    Free Shipping on orders $49 and up
    Sale - Save 16%
    $ 177.99

    This product was last offered at the strikethrough price on
    05-14-2026

    $ 148.91 USD
    Free Shipping on orders $49 and up


    Genuine BMW Vent Hose -
    This item fits the following BMW Chassis:
    E46

    Fits BMW Engines including:
    M56



    Genuine BMW - Corporate Logo
    T#:37164
    Part#: 11667584945
    Ships in 1 day
    4% off MSRP $ 44.99

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

    $ 42.99 USD
    Free Shipping on orders $49 and up
    4% off MSRP
    $ 44.99

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

    $ 42.99 USD
    Free Shipping on orders $49 and up


    Genuine BMW Vacuum Pipe With Non-Return Valve -
    This item fits the following BMW Chassis:
    E71,F15,F16

    Fits BMW Engines including:
    N55

    Genuine BMW - Corporate Logo
    T#:37172
    Part#: 11667609055
    Ships in 1 day
    4% off MSRP $ 44.99

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

    $ 42.99 USD
    Free Shipping on orders $49 and up
    4% off MSRP
    $ 44.99

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

    $ 42.99 USD
    Free Shipping on orders $49 and up


    Genuine BMW Vacuum Pipe -
    This item fits the following BMW Chassis:
    E82,E90,E92,E93

    Fits BMW Engines including:
    N55