URO 06A103221AN Engine Crankcase Breather Hose

Engine Crankcase Breather Hose for VW

This URO engine crankcase breather hose restores crankcase ventilation flow after the original hose cracks, splits, or leaks. It is a direct-fit replacement for select Volkswagen Golf and Volkswagen Jetta models, with fitment for 2004-2006 Volkswagen Golf and 2004-2005 Volkswagen Jetta.

• Direct replacement for part number 06A103221AN
• Fits 2004-2006 Volkswagen Golf and 2004-2005 Volkswagen Jetta
• Made from AEM material for resistance to engine heat and oil vapor
• Black hose with 2 branches and 3 hose connectors
• End sizes: 0.93 in. and 0.52 in. inside diameter
• Length: 9.45 in.
• Cross-references VAICO V10-4630 for the same application

Fitment and Function

Part number 06A103221AN is used in the emission control and crankcase ventilation system to replace a failed OE breather hose and restore proper crankcase ventilation. On compatible Volkswagen Golf and Volkswagen Jetta applications, this hose helps maintain the intended routing of vapors through the PCV system and supports hydrocarbon emissions control.

Compatible With: 2004-2006 Volkswagen Golf, valve cover 3 way valve - valve cover, PCV tube (large); 2004-2005 Volkswagen Jetta, valve cover 3 way valve - valve cover, PCV tube (large).

Common Issues Addressed

• Cracked or split crankcase breather hose
• Oil vapor leaks around the PCV/breather routing
• Rough idle or drivability issues related to vacuum leakage
• Check engine light concerns tied to crankcase ventilation faults
• Reduced crankcase ventilation performance from a deteriorated hose

Installation Notes

Inspect the surrounding PCV and valve cover connections before installation and replace any hardened or damaged mating components as needed. Verify hose routing against the original layout on the vehicle to ensure correct connection at both ends and at the branch points.

Quality Assurance

URO backs this replacement hose with a 24-month unlimited mileage warranty. The hose is built from materials selected to resist cracking and splitting caused by engine heat and oil vapor, and it is engineered for guaranteed fitment on the listed Volkswagen applications.