URO 901107394005M Engine Crankcase Breather Hose

Engine Crankcase Breather Hose for Porsche 911

This URO engine crankcase breather hose is a direct replacement for the Porsche 911 crankcase ventilation system. It is built from black NBR material to handle engine heat and oil vapor while restoring breather hose function on 1965-1979 Porsche 911 models.

• Black NBR construction for resistance to cracking and splitting
• Two hose connectors
• Non-molded hose design
• Direct-fit replacement for the crankcase breather hose application
• URO Part Number 901107394005M

Fitment Details

• Fits 1965-1979 Porsche 911, N/A. Notes: 5 Meter Piece.

How It Works

The crankcase breather hose routes vapors through the emission control and crankcase ventilation system, helping maintain proper hydrocarbon control. On Porsche 911 models, a worn or split hose can disrupt ventilation and create drivability or emissions concerns. Replacing the failed hose with URO 901107394005M restores the intended breather path and supports normal crankcase ventilation performance.

This part cross-references URO-008730 for the same application.

Common Issues This Part May Resolve

• Cracked or split crankcase breather hose
• Oil vapor leakage at the ventilation hose
• Reduced crankcase ventilation flow
• Emission control concerns related to breather hose failure
• Heat-related hose deterioration on Porsche 911 applications

Installation Notes

Verify hose routing and connector sizing before installation. Because this hose is not molded, confirm the required path and length for your Porsche 911 application before trimming or fitting. Inspect adjoining ventilation components for wear, oil saturation, or hardening so the replacement hose can seal and function correctly.

Quality Assurance

URO backs this part with a 24-month unlimited mileage warranty. The hose is made from materials selected to resist engine heat and oil vapor exposure, and it is offered as a guaranteed-fit replacement for the listed Porsche 911 applications.