HomeEmission Control > Crankcase Ventilation SystemGenuine 94810721503 Engine Crankcase Breather Hose
Part #: 94810721503

Genuine 94810721503 Engine Crankcase Breather Hose

4 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Porsche, Cayenne
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Engine Crankcase Breather Hose for Porsche Cayenne

This Genuine engine crankcase breather hose is a direct-fit emission control component for the crankcase ventilation system. It is listed for naturally aspirated 2003-2006 Porsche Cayenne models with the separator-to-cam cover routing.

Key Features

  • Genuine replacement part, Part Number 94810721503
  • Engine crankcase breather hose for the emission control system
  • Fits 2003-2006 Porsche Cayenne, naturally aspirated
  • Separator to cam cover hose routing
  • Built for crankcase ventilation service on Porsche Cayenne applications

Detailed Description

Part number 94810721503 is an engine crankcase breather hose used in the crankcase ventilation system to route vapors between the separator and cam cover. For 2003-2006 Porsche Cayenne vehicles with naturally aspirated engines, this Genuine hose supports the original emission control layout and restores the intended hose path. If you are replacing a worn or damaged Porsche Cayenne breather hose, 94810721503 is the correct OE-style service part for this application.

What It Helps Address

  • Cracked or split crankcase breather hose
  • Oil vapor leaks at the separator-to-cam cover connection
  • Rough idle caused by crankcase ventilation leaks
  • Vacuum-related drivability issues from damaged ventilation plumbing
  • Emission control faults tied to crankcase ventilation routing

Installation Notes

Verify engine configuration before ordering: this hose is listed for naturally aspirated 2003-2006 Porsche Cayenne models only. Confirm the separator-to-cam cover routing and match the part number 94810721503 to the existing hose before installation. Inspect adjoining ventilation components for wear, oil saturation, or cracking while servicing the hose.

Quality Assurance

Genuine OEM replacement part for the specified Porsche Cayenne fitment. Part number 94810721503 is cataloged for direct application on the listed vehicles.

This part fits 4 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006PorscheCayenne4.5LV8N/ANaturally Aspirated; Seperator to Cam Cover
2005PorscheCayenne4.5LV8N/ANaturally Aspirated; Seperator to Cam Cover
2004PorscheCayenne4.5LV8N/ANaturally Aspirated; Seperator to Cam Cover
2003PorscheCayenneN/ANaturally Aspirated; Seperator to Cam Cover

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.