Vaico V20-0785 Engine Crankcase Breather Hose - Pressure Regulator To Valve Cover

BMW Crankcase Breather Hose

This Vaico engine crankcase breather hose routes vapors from the pressure regulator to the valve cover on select BMW applications. Built to match the listed dimensions and fitment, it supports proper crankcase ventilation on BMW 325i, 330i, X5, and related models.

• Brand: Vaico / VAICO
• Part number: V20-0785
• Category: Emission Control > Crankcase Ventilation System
• Engine crankcase breather hose for pressure regulator to valve cover routing
• Length: 335 mm
• Width: 60 mm
• Height: 50 mm
• Weight: 0.048 kg
• Fits select BMW 1999-2006 applications

Product Details

VAICO V20-0785 is an aftermarket crankcase breather hose for BMW crankcase ventilation service. The hose measures 335 mm in length, 60 mm in width, and 50 mm in height, with a lightweight 0.048 kg construction. It is listed for pressure regulator to valve cover routing and is compatible with a wide range of BMW 3 Series, 5 Series, Z3, Z4, X3, and X5 models. This part number, V20-0785, is also referenced in interchange listings for cross-checking during parts lookup.

Compatible With BMW 325Ci, BMW 330Ci, BMW X3, BMW X5, BMW 320i, BMW 325i, BMW 325xi, BMW 330i, BMW 330xi, BMW 525i, BMW 530i, BMW Z4, BMW Z3, BMW 323Ci, BMW 323i, BMW 323ti, BMW 328Ci, and BMW 328i in the listed pressure regulator to valve cover application. This part cross-references Gates EMH139 for the same application.

Common Issues This Hose Can Address

• Cracked or brittle crankcase breather hose
• Vacuum leaks in the crankcase ventilation circuit
• Oil vapor routing problems between the pressure regulator and valve cover
• Rough idle or drivability concerns tied to ventilation leaks
• Visible hose deterioration from age and heat exposure

Installation Notes

Verify the vehicle’s engine configuration and compare the existing hose routing before installation. This listing excludes cold-climate version applications, so confirm the exact BMW fitment by year, model, and ventilation layout. Inspect adjoining crankcase ventilation components for wear, contamination, or cracking before completing the repair.

Quality Assurance

VAICO supplies aftermarket replacement parts for European vehicle service, and this hose is cataloged with OE-style fitment references for BMW crankcase ventilation repair. Use the part number V20-0785 and the vehicle-specific fitment data to confirm application before ordering.