Home
Engine Parts
Emissions System
Oil Separation & Breather System

Oil Separation & Breather System for BMW E71 X6 ActiveHybrid N63 4.4L

Clear BMW chassis

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.

Sub-Categories

CCV/PCV Breather Hoses (16)

Sort By:

OEM Rein Cylinders 5-8 Crankcase Ventilation Connecting Pipe - E70/1 ...

2X Entries Into Our F80 M3 Sweepstakes

T#:402034

Part#: 11157646087

In Stock

$ 53.99 USD

Add to Wish List

Qty

$ 53.99 USD

Add to Wish List

Connects to the valve cover over cylinders 1-4. These pipes tend to crack after become brittle from numerous heating and cooling cycles. If this happens, OEM Rein pipes are a perfect replacement to restore a tight seal and prevent any check engine codes.

Show More Show Less

Bremmen Crankcase Ventilation Connecting Pipe - Cylinders 1-4 - E70/1...

10X Entries Into Our F80 M3 Sweepstakes

T#:640154

Part#: 11157646086

In Stock

Sale - Save 21% $ 52.99

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

$ 41.61 USD

Add to Wish List

Qty

Sale - Save 21%

$ 52.99

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

$ 41.61 USD

Add to Wish List

Connects to the valve cover over cylinders 1-4. These pipes tend to crack after become brittle from numerous heating and cooling cycles. If this happens, Bremmen pipes are a perfect replacement to restore a tight seal and prevent any check engine codes.

Show More Show Less

Bremmen Crankcase Ventilation Connecting Pipe - Cylinders 5-8 - E70/1...

10X Entries Into Our F80 M3 Sweepstakes

T#:640153

Part#: 11157646087

In Stock

Sale - Save 20% $ 49.99

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

$ 39.98 USD

Add to Wish List

Qty

Sale - Save 20%

$ 49.99

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

$ 39.98 USD

Add to Wish List

Connects to the valve cover over cylinders 5-8. These pipes tend to crack after become brittle from numerous heating and cooling cycles. If this happens, Bremmen pipes are a perfect replacement to restore a tight seal and prevent any check engine codes.

Show More Show Less

Genuine BMW Crankcase Ventilation Connecting Line - 11157646087 ...

T#:174249

Part#: 11157646087

In Stock

13% off MSRP $ 127.09

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

$ 110.00 USD

Add to Wish List

Qty

13% off MSRP

$ 127.09

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

$ 110.00 USD

Add to Wish List

Directs the gases from the PCV system back to the intake.
When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

Genuine BMW Connecting Line - Zyl 5-8
This item fits the following BMW Chassis:
E71,F01,F02,F10,F12,F13

Fits BMW Engines including:
N63

Show More Show Less

OEM Rein Cylinders 1-4 Crankcase Ventilation Connecting Pipe - E70/1 ...

2X Entries Into Our F80 M3 Sweepstakes

T#:402033

Part#: 11157646086

Ships in 4 Business Days

$ 50.99 USD

Add to Wish List

Qty

$ 50.99 USD

Add to Wish List

Connects to the valve cover over cylinders 1-4. These pipes tend to crack after become brittle from numerous heating and cooling cycles. If this happens, OEM Rein pipes are a perfect replacement to restore a tight seal and prevent any check engine codes.

Show More Show Less

Genuine BMW Connecting Line - 11157646086

T#:174248

Part#: 11157646086

Ships in 1-2 days

13% off MSRP $ 127.09

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

$ 110.00 USD

Add to Wish List

Qty

13% off MSRP

$ 127.09

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

$ 110.00 USD

Add to Wish List

Since the late 1800’s Febi has been fabricating replacement metal parts. This history is self-evident in the quality and vast amount of applications they serve. With more than 34,000 repair solutions for cars and commercial vehicles, you can be sure Febi has you covered.

Genuine BMW Connecting Line - Zyl 1-4
This item fits the following BMW Chassis:
E71,F01,F02,F10,F12,F13

Fits BMW Engines including:
N63

Show More Show Less

Genuine BMW Crank Case Ventilation Valve - N63 4.4L

T#:216971

Part#: 11158647299

In Stock

10% off MSRP $ 208.99

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

$ 191.99 USD

Limited Qty Sale

Add to Wish List

Qty

10% off MSRP

$ 208.99

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

$ 191.99 USD

Limited Qty Sale

Add to Wish List

Genuine Bmw Connecting Line - 11158647299

Rein Crankcase Vent Pipe - Cylinders 1-4 - E70, E71, F01, F02, F07, F...

2X Entries Into Our F80 M3 Sweepstakes

T#:591595

Part#: 11157575640

In Stock

$ 42.99 USD

Add to Wish List

Qty

$ 42.99 USD

Add to Wish List

Replace your damaged crank vent pipe

Oil Separator kit - N63

10X Entries Into Our F80 M3 Sweepstakes

T#:56291074

Part#: 11158636540KT2

Ships in 4 Business Days

$ 429.67 USD

Add to Wish List

Qty

$ 429.67 USD

Add to Wish List

If your BMW is burning oil, showing unmetered air faults, or suffering from degraded throttle response, a compromised breather system is usually the culprit. The N63 Crankcase Breather Package pairs Genuine BMW oil separators with OE tier Rein connecting pipes. Designed to restore factory level oil separation and sealed vacuum integrity across both cylinder banks

Show More Show Less

Genuine BMW Crankcase Vent Pipe - Cylinders 1-4 - N63 4.4L

T#:32285

Part#: 11157575640

Ships in 1-2 days

4% off MSRP $ 72.99

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

$ 69.99 USD

Add to Wish List

Qty

4% off MSRP

$ 72.99

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

$ 69.99 USD

Add to Wish List

Genuine BMW Vent Pipe - Zyl 1-4
This item fits the following BMW Chassis:
E71,F01,F02,F10,F12,F13

Fits BMW Engines including:
N63

Genuine BMW Crankcase Vent Pipe - Cylinders 5-8 - N63 4.4L

T#:32286

Part#: 11157575641

Ships in 1-2 days

4% off MSRP $ 70.99

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

$ 67.99 USD

Add to Wish List

Qty

4% off MSRP

$ 70.99

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

$ 67.99 USD

Add to Wish List

Genuine BMW Vent Pipe - Zyl 5-8
This item fits the following BMW Chassis:
E71,F01,F02,F10,F12,F13

Fits BMW Engines including:
N63

Genuine BMW Vacuum Pipe

Vacuum Pipe

T#:37048

Part#: 11657612158

Ships in 1-2 days

4% 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.

$ 49.99 USD

Add to Wish List

Qty

4% 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.

$ 49.99 USD

Add to Wish List

Genuine BMW Vacuum Pipe -
This item fits the following BMW Chassis:
E71,F01,F02,F06,F10,F12,F13

Fits BMW Engines including:
N63,N63N

Rein Crankcase Vent Pipe - Cylinders 5-8 - E70, E71, F01, F02, F07, F...

2X Entries Into Our F80 M3 Sweepstakes

T#:591596

Part#: 11157575641

Ships in 4 Business Days

$ 45.99

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

$ 44.99 USD

Add to Wish List

Qty

$ 44.99 USD

Add to Wish List

Replace your damaged crank vent pipe

Bremmen Parts Crankcase Vent Pipe - Cylinders 1-4 - E70, E71, F01, F0...

10X Entries Into Our F80 M3 Sweepstakes

T#:1195923

Part#: 11157575640

In Stock

Sale - Save 7% $ 52.99

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

$ 49.41 USD

Add to Wish List

Qty

Sale - Save 7%

$ 52.99

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

$ 49.41 USD

Add to Wish List

Replace your damaged crank vent pipe

Rein Crank Case Ventilation Valve - Priced Each

2X Entries Into Our F80 M3 Sweepstakes

T#:17738377

Part#: 11158647299

In Stock

$ 73.99 USD

Add to Wish List

Qty

$ 73.99 USD

Add to Wish List

Rein's OE quality breather hose helps prevent pressure build-up in the engine.

Crankcase Ventilation Connecting Pipe - Cylinders 5-8

T#:50626659

Part#: 11157646087

Ships in 2 Business Days

$ 59.99 USD

Add to Wish List

Qty

$ 59.99 USD

Add to Wish List

Crankcase Ventilation Connecting Pipe - Cylinders 1-4

T#:50626658

Part#: 11157646086

Ships in 2 Business Days

$ 57.99 USD

Add to Wish List

Qty

$ 57.99 USD

Add to Wish List

Bremmen Parts Crankcase Vent Pipe - Cylinders 5-8 - E70, E71, F01, F0...

10X Entries Into Our F80 M3 Sweepstakes

T#:1195924

Part#: 11157575641

Ships in 1-2 days

Sale - Save 10% $ 63.23

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

$ 56.91 USD

Add to Wish List

Qty

Sale - Save 10%

$ 63.23

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

$ 56.91 USD

Add to Wish List

Replace your damaged crank vent pipe

Crankcase Ventilation Connecting Pipe - Cylinders 1-4

T#:57725182

Part#: 11157646086

Ships in 4 Business Days

$ 76.99 USD

Add to Wish List

Qty

$ 76.99 USD

Add to Wish List

Keep your performance engine running cleanly and efficiently with the Burgaflex Crankcase Ventilation Connecting Pipe for Cylinders 1-4.

Crank Case Ventilation Valve - Priced Each

10X Entries Into Our F80 M3 Sweepstakes

T#:53326230

Part#: 11158647299

In Stock

Sale - Save 20% $ 80.99

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

$ 64.79 USD

Add to Wish List

Qty

Sale - Save 20%

$ 80.99

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

$ 64.79 USD

Add to Wish List

Select Vehicle

Purpose

Category

Oil Separation & Breather System
- CCV/PCV Breather Hoses (16)

Brand

Price

Special Offers

Shipping