Breather Pipes

Bracket For Crankcase Breather Pipe. 

Fits:
Porsche 92A Cayenne (958) 3.6L Petrol 2011>>2018
Cars With Engine Codes:
CURA / CUR / CXZA / CXZ

Porsche 95B.1 Macan S / GTS 3.0L Petrol MKI 2014>>2018
Porsche 95B.1 Macan Turbo 3.6L MKI 2014>>2018
Cars With Engine Codes:
CTMA / CTM / CTLA / CTL / DCNA / DCN / DHKA / DHK

Porsche 970.2 Panamera S / 4S Turbo 3.0L V6 MKII 2014>>2016
Cars With Engine Codes:
CWDA / CWD / CWFA / CWF

Diagram Ref No 8

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94610702976

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Breather Line For Crankcase Housing.
 
Fits:
Porsche 92A Cayenne (958) 4.8L Petrol 2011>>2018
Cars With Engine Codes:
4802

Porsche 970 Panamera 4.8L V8 MKI / MKII 2010>>2016
Cars With Engine Codes:
4820 / 4840 / CXPA / CXRA / CXR

Diagram Ref No 6

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94810724720

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Crankcase vent/breather hose - connects to the non-return valve leading to the air/oil separator (958 models), or the intermediate line which then joints the non-return valve (957 models). 

Fits:
Porsche 957 Cayenne Turbo 4.8L V8 2007-10 
Porsche 957 Cayenne Turbo S 4.8L V8 2007-10

Porsche 958-1 Cayenne Turbo 4.8L V8 2011-14
Porsche 958-1 Cayenne Turbo S 4.8L V8 2011-14

Porsche 958-2 Cayenne Turbo 4.8L V8 2015-18
Porsche 958-2 Cayenne Turbo S 4.8L V8 2015-18 

Diagram ref. 6 - 957 Cayenne. 
Diagram ref. 9 - 958 Cayenne. 

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95510725150

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Engine breather line. 



Fits:
Porsche 958 Cayenne S Hybrid V6 - 2010 to 2017
Porsche 970.1 Panamera S Hybrid V6 - 2009 to 2013
Porsche 970.2 Panamera S E-Hybris V6 - 2014 to 2016

Click 'Zoom in' for large parts diagram.
Diagram ref no 6


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95810721700

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Non Return Valve Crankcase Oil Breather. 

Fits:
Porsche 95B Macan S / GTS / Turbo 2014>>2018
Porsche 958 Cayenne / GTS 3.6L 2015>>2018
Porsche 970.2 Panamera / S 3.0L 2014>>2016

Diagram Ref No 1 And 2


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9461072

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Non-Return Valve – Crankcase Oil Breather
The crankcase oil breather non-return valves is an essential part of your Porsche’s engine ventilation system. Designed to OEM specifications, they regulate crankcase pressure, prevent oil vapour backflow, and ensure smooth, efficient engine operation. Replacing both valves together restores proper crankcase breathing and protects your engine from leaks and excess oil consumption.

Fits:

• Porsche Cayenne V6 3.6L Petrol 300Hp
• Porsche Panamera S V6 Turbo 3.0L 2WD (420Hp)
• Porsche Panamera S V6 Turbo 3.0L 2WD Executive
• Porsche Panamera 4S V6 Turbo 3.0L 4WD (420Hp)
• Porsche Panamera 4S V6 Turbo 3.0L 4WD Executive
• Porsche Macan S Petrol 3.0L V6 340Bhp
• Porsche Macan GTS Petrol 3.0L V6 360Bhp
• Porsche Macan Turbo 3.6L V6 400Bhp

Diagram Ref No 1 and 2

What the Non Return Valves Do

• Maintain Correct Pressure: Allow gases to escape while preventing backflow into the crankcase.
• Improve Engine Efficiency: Reduce oil vapour re-entry, helping cleaner combustion.
• Protect Components: Prevent pressure build-up that can damage seals and gaskets.

Symptoms of Faulty Breather Valves

• Excessive oil consumption.
• Blue smoke from the exhaust.
• Oil leaks around gaskets and seals.
• Rough idle, misfires, or poor performance.
• Strong smell of oil fumes in the engine bay or cabin.

Common Reasons for Failure

• Oil Sludge & Contamination: Causes the valve to stick open or closed.
• Rubber & Spring Wear: Degradation over time reduces effectiveness.
• Lack of Maintenance: Old oil accelerates valve failure.
• High Mileage Stress: Heat cycles and pressure changes weaken components.

Why Replace?
Restores proper crankcase ventilation.
Prevents oil leaks and excess pressure in the engine.
Reduces harmful emissions and oil consumption.
Protects seals, gaskets, and other critical engine parts.
Improves reliability, performance, and long-term durability.

Why Buy from Design 911?

• Specialist Supplier: We are Porsche parts experts with years of experience.
• OEM Quality & Fitment: Parts meet or exceed original specifications.
• Trusted Worldwide: Thousands of Porsche owners and workshops rely on us.
• Comprehensive Support: Expert advice, fast shipping, and hassle-free service.
• One-Stop Shop: Whether it’s engine, body, or interior components, Design 911 has you covered.

Ideal For: Replacing worn crankcase valves during servicing or resolving oil consumption, leaks, or performance issues.

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9461072

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Thrust Ring For Breather Line Tank Ventilation.

Fits:
Porsche 92A Cayenne (958) 4.8L 2011>>2018
Cars With Engine Codes:

4802 / 4852 / CFTB / CFT / CYXA / CYX

Porsche 9PA1 Cayenne (957) 4.8L 2007>>2010
Cars With Engine Codes:
4801 / 4851

Porsche 970 Panamera 4.8L MKI / MKII 2010>>2016
Cars With Engine Codes:
4820 / 4840 / 4870 / CXPA / CXRA / CXR / CWBA / CWB / CWCA / CWC

Porsche 970 Panamera 3.6L MKI / MKII 2010>>2016
Cars With Engine Codes:
4620 / 4640 / CWAA / CXNA

Diagram Ref No 5

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94811022100

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