Vaico V20-0791 Engine Crankcase Vent Valve

Engine Crankcase Vent Valve for BMW V8 Applications

Vaico V20-0791 is a mechanical engine crankcase vent valve for emission control and crankcase ventilation service. It uses a non-return valve design to help manage crankcase pressure and airflow in BMW applications that call for OE reference 11611745103.

Compatible with BMW 540i, 740i, 740iL, and 840Ci applications, this VAICO crankcase ventilation valve is built around the listed dimensions and mechanical operating mode for direct replacement service.

Key Features

• Brand: Vaico / VAICO
• Part number: V20-0791
• Engine crankcase vent valve for emission control systems
• Mechanical operating mode
• Non-return valve construction
• Dimensions: 200 mm length, 135 mm width, 60 mm height
• Weight: 0.288 kg
• OE reference: 11611745103

Detailed Description

Vaico V20-0791 is an engine crankcase vent valve used in crankcase ventilation systems to regulate one-way flow and support proper crankcase pressure control. The mechanical, non-return valve design is specified for BMW V8 applications and is listed with cover and seals in the fitment notes for the referenced OE application. This part number, V20-0791, is a direct-fit service option for BMW 540i, BMW 740i, BMW 740iL, and BMW 840Ci models within the stated year ranges.

VAICO product line identification is important here because V20-0791 is cataloged as an aftermarket emission control component with OE-number-based fitment. For buyers searching by BMW crankcase vent valve, BMW PCV-style ventilation service part, or engine crankcase ventilation valve for BMW 540i and 740i applications, this listing provides the core dimensional and application data needed for selection.

This part cross-references Eastern Catalytic 40909 for the same application.

What It Helps Address

• Crankcase pressure control issues
• One-way flow problems in the ventilation circuit
• Emission control service needs tied to crankcase ventilation
• OE-number-based replacement for BMW ventilation repair
• BMW crankcase vent valve replacement on listed V8 models

Installation Notes and Tips

• Verify OE reference 11611745103 before ordering.
• Confirm the vehicle model and year range against the fitment list.
• Inspect the surrounding ventilation components and sealing surfaces during service.
• Use the listed dimensions to compare against the removed valve when checking application match.

Quality Assurance

VAICO catalogs this part as an aftermarket replacement for the specified BMW applications and OE reference. The mechanical non-return valve design and application-specific fitment data support accurate parts selection for BMW 540i, 740i, 740iL, and 840Ci service.

• Fits 1997-2003 BMW 540i, N/A; Grade: Aftermarket; Incl.Cover,Seals; With OE No. 11611745103; VAICO
• Fits 1997-2001 BMW 740i, N/A; Grade: Aftermarket; Incl.Cover,Seals; With OE No. 11611745103; VAICO
• Fits 1996-2001 BMW 740iL, N/A; Grade: Aftermarket; Incl.Cover,Seals; With OE No. 11611745103; VAICO
• Fits 1994-1997 BMW 840Ci, N/A; Grade: Aftermarket; Incl.Cover,Seals; With OE No. 11611745103; VAICO