Vent line between air / oil separators. Porsche 957 Cayenne S / GTS  ❭  94810724502

Vent line between air / oil separators.
OE Match crankcase ventilation (breather) vent line that connects between the air/oil separators on the Porsche Cayenne 957 (9PA1) engine ventilation system. It supersedes older numbers 94810724501 and 94810724500.

Fits:
Porsche 957 Cayenne S / GTS 4.8L 2007 - 2010
 * Engine type 4801

Diagram ref no 19

This vent line is part of the Cayenne’s PCV / crankcase ventilation circuit, routing crankcase vapours between the separator units to keep pressure regulation stable and help return oil mist to the correct areas. It transfers crankcase vapours through the separator network so the system can manage blow-by gases effectively, reducing unwanted pressure build-up and helping limit oil vapour escape into the engine bay.

Function:
• Links the air/oil separator assemblies as part of the engine breather system
• Helps maintain correct crankcase pressure control
• Supports cleaner operation by managing oil vapour separation and routing

Breather/vent hoses live in a hot, oily environment and can harden, split, or lose sealing at the ends. A compromised vent line can contribute to vacuum/pressure leaks, oil misting, rough running, or PCV-related faults. Replacing it restores proper sealing and correct vapour routing.

When to Replace:
•  Visible cracks, softness, or oil saturation on the hose
•  Oil misting/residue around breather connections
•  PCV-related drivability issues or fault codes
•  During air/oil separator or major intake/engine-bay service

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94810724502

The product you are viewing cross references to these numbers