Vaico V10-3863 Engine Crankcase Vent Valve

Engine Crankcase Vent Valve for Audi and Volkswagen

The Vaico V10-3863 engine crankcase vent valve is a pressure-controlled breather valve for the cylinder head. It is built with a Polyamid 6.6 housing and FPM/ACM seals for service in the crankcase ventilation system.

Compatible with select Audi A3, Audi A4, Audi A4 allroad, Audi A4 Quattro, Audi A6, Audi A6 Quattro, and Volkswagen Golf applications, this VAICO part is specified with the OE reference 06K103495AF. The V10-3863 is supplied with a seal and screws, and it uses a female Torx bolt head/nut design for service access.

Key Features

• Pressure-controlled breather valve for crankcase ventilation
• Fits at the cylinder head location
• Polyamid 6.6 housing for durable construction
• FPM (fluoride rubber) and ACM (polyacrylate rubber) seal material
• Supplied with seal and screws
• Female Torx fastener design
• VAICO V10-3863 replacement part

Detailed Product Information

VAICO V10-3863 is an engine crankcase vent valve used in emission control and crankcase ventilation service. The valve type is a breather valve with pressure-controlled operation, helping regulate crankcase vapors at the cylinder head. Its dimensions are 235 mm long, 175 mm wide, and 115 mm high, with a listed weight of 0.420 kg. This part cross-references OE-style application 06K103495AF for the same application.

Brand Line: VAICO identifies this part under its VAICO product line, which is used for application-specific replacement components in European vehicle systems. For buyers searching by OE number, V10-3863 is a direct reference point for this crankcase ventilation service part.

Vehicle Fitment

• Fits 2015-2017 Audi A3, N/A; Grade: Aftermarket; Incl. Gasket; With OE No. 06K103495AF; VAICO
• Fits 2017 Audi A4, N/A; Grade: Aftermarket; Incl. Gasket; From 07/01/2016; With OE No. 06K103495AF; VAICO
• Fits 2017 Audi A4, N/A; Grade: Aftermarket; Incl. Gasket; To 01/07/2016; With OE No. 06K103495AF; VAICO
• Fits 2017 Audi A4 allroad, N/A; Grade: Aftermarket; Incl. Gasket; With OE No. 06K103495AF; VAICO
• Fits 2017 Audi A4 Quattro, N/A; Grade: Aftermarket; Incl. Gasket; From 07/01/2016; With OE No. 06K103495AF; VAICO
• Fits 2017 Audi A4 Quattro, N/A; Grade: Aftermarket; Incl. Gasket; To 01/07/2016; With OE No. 06K103495AF; VAICO
• Fits 2016-2017 Audi A6, N/A; Grade: Aftermarket; Incl. Gasket; With OE No. 06K103495AF; VAICO
• Fits 2016-2017 Audi A6 Quattro, N/A; Grade: Aftermarket; Incl. Gasket; With OE No. 06K103495AF; VAICO
• Fits 2015 Volkswagen Golf, N/A; Grade: Aftermarket; Incl. Gasket; With OE No. 06K103495AF; VAICO

Common Issues This Part Addresses

• Crankcase pressure regulation concerns
• Breather valve wear or failure
• Oil vapor control issues in the ventilation system
• OE number 06K103495AF replacement needs
• Service replacement for cylinder head-mounted ventilation components

Installation Notes and Tips

Confirm OE number match before installation and verify the cylinder head mounting location on the vehicle. Use the supplied seal during service, and follow the vehicle-specific torque and fastening procedure for the female Torx hardware. For maintenance planning, VAICO lists a recommended replacement interval of 60,000 km or 3 years.

Quality Assurance

VAICO V10-3863 is built as an aftermarket replacement for the listed Audi and Volkswagen applications and is identified with OE reference 06K103495AF. The part is specified with application-focused materials and sealing components for crankcase ventilation service.