URO 11151703775 Engine Crankcase Breather Hose

BMW Crankcase Breather Hose Replacement

This URO engine crankcase breather hose restores crankcase ventilation flow when the original hose cracks, splits, or leaks. It is a direct-fit replacement for select BMW models, including BMW Z3, BMW 323i, BMW 323is, BMW 328i, BMW 328is, and BMW 528i applications.

• PA12 construction for resistance to engine heat and oil vapor
• Molded hose design for OE-style routing and fitment
• Two hose connectors with one branch
• Replacement for the hose between the valve cover and pressure regulator
• Guaranteed fitment for listed BMW applications
• 24-month unlimited mileage warranty

Detailed Product Overview

Part number 11151703775 is an engine crankcase breather hose for the emission control and crankcase ventilation system. On BMW applications, this hose carries vapors between the valve cover and pressure regulator so the crankcase ventilation system can maintain proper flow and hydrocarbon control. The molded PA12 construction helps the hose hold its shape and resist deterioration from heat and oil exposure. This URO replacement is a practical choice when the original hose has become brittle, collapsed, or oil-soaked.

This part cross-references Genuine 11151703775 for the same application.

What This Hose Helps Address

• Cracked or split crankcase breather hose
• Vacuum leaks caused by deteriorated ventilation tubing
• Oil vapor seepage around the valve cover breather connection
• Improper crankcase ventilation flow
• Check engine concerns related to emission control airflow

Installation Notes

Install this hose in the factory location between the valve cover and pressure regulator. Confirm the routing matches the molded shape before final connection, and inspect adjacent ventilation components for age-related wear. For fitment, this part is used on 1997-2000 BMW Z3, 1998-1999 BMW 323i, 1998-1999 BMW 323is, 1996-1999 BMW 328i, 1996-1999 BMW 328is, and 1997-1999 BMW 528i applications; 1998-1999 BMW 528i coverage applies through August 1998 production.

Quality Assurance

URO backs this crankcase breather hose with a 24-month unlimited mileage warranty. The replacement is built from heat- and oil-resistant materials to support reliable service in BMW crankcase ventilation applications.