Oil Separation & Breather System for BMW X Series E84 (2013-2015)

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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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Upgraded Silicone PCV Hose - (11127588417) - N20/N26
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Turner Motorsport - Corporate Logo
T#:46203566
Part#: 018501LA02
In Stock
$ 99.99 USD
Free Shipping
$ 99.99 USD
Free Shipping

Due to weak plastic construction, the factory plastic crankcase ventilation breather hose is known to fail. After years of exposure to piping-hot engine bay temperatures and chemical-laden oil vapors, the corrugated plastic tubing can crack, crumble, or fail altogether.

We set out to bulletproof your N20 PCV system with a durable silicone breather hose, designed to provide a comprehensive upgrade and permanent replacement for the factory plastic hose. By replacing the flimsy, heat-hardened OEM plastic hose with a four-ply fluorosilicone hose, you'll experience peace of mind knowing your N20 is free from the inevitable return of oil leaks, vacuum leaks, and drivability concerns that would have been.

This breather hose is found at the front of the engine, and is used to connect the inlet pipe to the valve cover. It replaces OEM part number 11127588417.

Features:

Silicone construction ensures a durable replacement that is sure to outlast OE plastic
Designed as a direct replacement for the factory breather hose
Retains heating function and OE electrical connector
Design:

Four-ply wire-reinforced fluorosilicone hose is designed to resist degradation due to exposure to oil vapors
O-rings are pre-installed in OE connectors for a lasting seal
Includes pre-installed zinc-coated hose clamps for durability and corrosion resistance
Product Development:

Our Silicone PCV Hose Upgrade was designed, engineered, tested, and quality inspected by our Research and Development team in our Wadsworth, Ohio, facility. We strive for the highest level of precision and quality through leading-edge product development technology, including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modelling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.

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Genuine BMW PCV Vent Pipe - N20 2.0L
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:31520
Part#: 11127588417
In Stock
5% off MSRP $ 72.41

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

$ 68.65 USD
Free Shipping on orders $49 and up
5% off MSRP
$ 72.41

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

$ 68.65 USD
Free Shipping on orders $49 and up


Genuine BMW Vent Hose -
This item fits the following BMW Chassis:
E89 Z4,F10,F22,F25 X3,F26 X4,F30,F31,F32,F33,F34,F36

Fits BMW Engines including:
N20,N26

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PCV Vent Pipe
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:594381
Part#: 11127588417
In Stock
$ 84.99

This product was last offered at the strikethrough price on
03-31-2026

$ 58.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 84.99

This product was last offered at the strikethrough price on
03-31-2026

$ 58.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
Connects to the PCV outlet on the valve cover

PCV Vent Pipe
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Bremmen Parts - Corporate Logo
T#:26438184
Part#: 11127588417
In Stock
Sale - Save 21% $ 63.99

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

$ 50.58 USD
Free Shipping on orders $49 and up
Sale - Save 21%
$ 63.99

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

$ 50.58 USD
Free Shipping on orders $49 and up

ECS Tuning Baffled Oil Catch Can - 8oz
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:13496655
Part#: 003779ECS05-02
In Stock
Sale - Save 5% $ 233.99

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

$ 222.11 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 233.99

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

$ 222.11 USD
Free Shipping on orders $49 and up
Upgrade Your BMW with ECS Baffled Oil Catch Can

Modern emission regulations require a closed PCV/Breather system for cleaner operation. However, inefficient oil particle capture can lead to excessive oil vapor ingestion, causing carbon buildup, reduced performance, and fuel economy. ECS Tuning's updated ECS Baffled Oil Catch Can, now with an easy-to-empty 1/4" drain fitting, is engineered to collect toxic blow-by gases, minimize carbon deposits, and reduce oil contamination within engine oil. Recirculating oil vapor ensures emissions compliance without venting to the atmosphere.

  • Key Features:
  • Highly Efficient Oil Separator: Strategically positioned 4 chamber baffle system maximizes oil/air separation and minimizes oil droplets in the intake tract.
  • Integrated Dipstick: Knurled and black anodized oil dipstick simplifies oil volume inspection.
  • Reservoir: Available in 6oz or 8oz capacity with a 1/4" NPT drain plug fitting.
  • Serviceable: Easily removable baffle plates and drain plug for cleaning.
  • Easy/Customizable Installation: Combine with the ECS Universal Bracket Kit for simplified installation and adjustable mounting locations.
  • Leak-Free Fittings: Machined -10AN ORB (O-Ring Boss) fittings available for secure connections (fittings sold separately).
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Vacuum Hose - E84, F10, F22, F25, F30, F31, F32, F33, F34, Z4 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:37043
Part#: 11657607726
Ships in 1-2 days
7% 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.

$ 41.99 USD
Free Shipping on orders $49 and up
7% 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.

$ 41.99 USD
Free Shipping on orders $49 and up


Genuine BMW Vacuum Hose -
This item fits the following BMW Chassis:
E89 Z4,F10,F22,F25 X3,F30,F31,F32,F33,F34

Fits BMW Engines including:
N20

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Vacuum Pipe
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:37159
Part#: 11667575774
In Stock
7% 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.

$ 41.99 USD
Free Shipping on orders $49 and up
7% 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.

$ 41.99 USD
Free Shipping on orders $49 and up


Genuine BMW Vacuum Pipe -
This item fits the following BMW Chassis:
E71,E82,E90,E92,E93,F06,F10,F12,F13,F15,F16

Fits BMW Engines including:
N55

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Genuine BMW Vacuum pipe
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:174243
Part#: 11157603816
Ships in 1-2 days
7% 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.

$ 41.99 USD
Free Shipping on orders $49 and up
7% 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.

$ 41.99 USD
Free Shipping on orders $49 and up


Genuine BMW Vacuum Pipe -
This item fits the following BMW Chassis:
E89 Z4,F10,F22,F25 X3,F26 X4,F30,F31,F32,F33,F34,F36

Fits BMW Engines including:
N20,N26

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N20 Vacuum Hose - 11657607726
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Bremmen Parts - Corporate Logo
T#:36981055
Part#: 11657607726
Special Order: No Guaranteed ETA
Sale - Save 20% $ 42.99

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

$ 34.26 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 42.99

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

$ 34.26 USD
Free Shipping on orders $49 and up

Due to weak rubber construction and exposure to heat, this vacuum hose may be brittle and/or broken.

Replace it with this high-quality piece from Bremmen Parts to ensure proper turbocharger functionality.

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Vacuum Pipe - E82, E84, E88, E90, E92, E93
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:37172
Part#: 11667609055
Ships in 1-2 days
7% 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.

$ 41.99 USD
Free Shipping on orders $49 and up
7% 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.

$ 41.99 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

Vacuum Pipe - E84
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:37171
Part#: 11667603609
Ships in 1-2 days
4% off MSRP $ 164.99

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

$ 157.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 164.99

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

$ 157.99 USD
Free Shipping on orders $49 and up


Genuine BMW Vacuum Pipe -
This item fits the following BMW Chassis:
E89 Z4,F10,F25 X3

Fits BMW Engines including:
N20

Vacuum Pipe
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Bremmen Parts - Corporate Logo
T#:52586629
Part#: 11157603816
Ships on Aug 12, 2026
New Item
Sale - Save 20% $ 29.99

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

$ 23.99 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 29.99

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

$ 23.99 USD
Free Shipping on orders $49 and up