- Porsche 957 Cayenne S/GTS 4.8L 2007-10
Engine Crankcase Breather Hose Kit
The engine crankcase breather hose is a key part of your vehicle’s positive crankcase ventilation (PCV) system. Its main role is to route pressurized gases from the engine crankcase to the PCV valve (also called the air/oil separator). The PCV valve captures harmful oil vapers , drains them back into the engine, and redirects the cleaned air to the intake system to be burned during normal combustion.
Without a properly functioning breather hose, your engine can develop performance issues, oil leaks, and even emissions failures.
Fits:
Porsche 957 Cayenne S / GTS 4.8L 2009 - 2010
Why the Engine Crankcase Breather Hose Matters
During combustion, engines naturally produce positive crankcase pressure. This pressure combines with heat and oil vapers inside the crankcase. The breather hose is designed to handle this flow and keep your PCV system working efficiently.
Over time, however, exposure to heat, oil, and pressure makes the breather hose a common failure point. When damaged, it can cause poor performance, check engine lights, and increased emissions.
Common Symptoms of a Failing Crankcase Breather Hose
- Cracks, leaks, or breaks – Heat and oil vapers degrade rubber or plastic over time, leading to air leaks.
- Broken connectors or clips – Brittle plastic can snap during service or due to age.
- Visible damage – Hoses may split, soften, or harden, creating noticeable holes.
- Check Engine Light (CEL) – Unmetered air from a leak often triggers intake-related fault codes.
- Engine misfires or rough idle – Severe air leaks upset the air/fuel mixture, causing misfires.
Oil residue or odour – Escaping vapers leave oily deposits on the hose, engine block, and nearby components. In severe cases, you may smell burning oil.
Why You Shouldn’t Ignore a Bad Breather Hose
A faulty crankcase breather hose affects engine performance, fuel efficiency, and emissions compliance. Left untreated, it can cause long-term engine damage and costly repairs.
If you notice any of the above signs, it’s important to inspect and replace your crankcase breather hose as part of regular PCV system maintenance.
Diagram ref no 13 (Cyl 1-4) or 14 (Cyl 5-8)
NOTE: This part is compatible only with 957 Cayenne S/GTS models produced from the 2009 model year onwards. It is not compatible with earlier models equipped with the silver AOS.
Números de referencia relacionados
Números relacionados, reemplazados, de referencia cruzada o alternativos para comparación.
94810723603
El producto que está viendo hace referencia cruzada a estos números
Este kit se compone de los siguientes elementos:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MK1 GT2 2007-09
Se adapta a:
Porsche 911 - 1978 a 1989
Porsche 964 - 1989 a 1994
Porsche 993 - 1994 a 1998
Porsche 986 Boxster - 1997 a 2004
Porsche 996 - 1997 a 2005
Porsche 997.1 - 2005 a 2008
Números de referencia relacionados
Números relacionados, reemplazados, de referencia cruzada o alternativos para comparación.
99951255400
El producto que está viendo hace referencia cruzada a estos números
Compra de forma segura
Garantía de 12 meses
Envíos a todo el mundo