URO 11151708801 Engine Crankcase Breather Hose

BMW Crankcase Breather Hose Replacement

This URO engine crankcase breather hose is a direct-fit emission control replacement for select BMW models. It is built to restore crankcase ventilation performance, help maintain proper vacuum and air/fuel ratio, and reduce oil vapor buildup in the intake system.

• Compatible with select 1987-1993 BMW 325i applications
• Compatible with select 1987-1991 BMW 325is applications
• Compatible with select 1988-1991 BMW 325iX applications
• Compatible with select 1989-1990 BMW 525i applications
• Compatible with select 1987-1988 BMW 528e applications
• Compatible with select 1987 BMW 325e and 325es applications
• EPDM construction for heat and oil vapor resistance
• Manufactured to OE dimensions for straightforward installation and original appearance
• 2 hose connectors, 1 branch, non-molded design

Product Details

Part number 11151708801 is an engine crankcase breather hose for the crankcase ventilation system. It routes unburned fuel vapors from the crankcase into the intake manifold, helping the engine maintain proper ventilation and reducing the chance of oil residue collecting in the intake tract. This hose is a practical OE-style replacement for BMW 325i, BMW 325is, and BMW 525i service needs where the original flame trap hose has cracked, hardened, or split. The URO 11151708801 is made from EPDM and sized to OE dimensions for a clean fit and original routing.

Common Problems This Part Can Address

• Cracked or brittle crankcase breather hose
• Vacuum leaks caused by damaged ventilation plumbing
• Improper air/fuel ratio from unmetered air entry
• Oil vapor buildup in the intake manifold
• Reduced crankcase ventilation performance

Installation Notes

Inspect the surrounding crankcase ventilation components before installation, including adjacent hoses and intake connections. Confirm routing matches the original OE layout on your BMW 325i, BMW 325is, or BMW 528e application before final assembly. This part cross-references Rein ABV0118R for the same application.

Quality Assurance

URO backs this part with a 24-month unlimited mileage warranty. The hose is manufactured from high-quality EPDM material to withstand heat and oil vapor exposure in normal engine bay conditions.