Vaico V10-2504-1 Engine Crankcase Vent Valve

Engine Crankcase Vent Valve for Audi

The Vaico V10-2504-1 engine crankcase vent valve is an OE-reference replacement for crankcase ventilation service on select Audi turbo applications. It is built with pneumatic operating mode and sized to match the listed OE specification for direct-fit service.

VAICO focuses on application-specific replacement parts for European vehicles, and the VAICO line is used for maintenance parts that follow OE numbering and dimensional requirements. For this part, the OE reference is 034 129 101 B, with interchange coverage for 034 129 101 and 034 129 101 A.

• Engine crankcase vent valve for emission control and crankcase ventilation service
• Pneumatic operating mode
• OE reference: 034 129 101 B
• Dimensions: 86 mm length, 65 mm width, 55 mm height
• Lightweight design at 0.037 kg
• VAICO part number V10-2504-1 for catalog lookup

Detailed Product Overview

This crankcase vent valve helps maintain proper crankcase ventilation flow in the engine emission control system. It is specified for Audi S4, Audi S6, and Audi 200 Quattro applications listed below, making it a focused replacement for vehicles that require the OE number 034 129 101 B. The V10-2504-1 part number is useful when matching the valve to the correct Audi crankcase ventilation setup.

Fits 1995 Audi S6, N/A. Fits 1993-1994 Audi S4, N/A. Fits 1992 Audi S4, N/A. Fits 1991 Audi 200 Quattro, N/A.

Common Symptoms This Part Can Address

• Crankcase ventilation restriction
• Incorrect crankcase pressure control
• Oil vapor management issues in the ventilation circuit
• Emission control faults related to the crankcase vent system
• OE-number mismatch during Audi S4, Audi S6, or Audi 200 Quattro repair

Installation Notes and Tips

Verify the OE number on the original valve before ordering, especially when servicing a 1991 Audi 200 Quattro, 1992 Audi S4, 1993-1994 Audi S4, or 1995 Audi S6. Compare the valve dimensions and pneumatic operating style to the removed part to confirm correct application. Use the part number V10-2504-1 and OE reference 034 129 101 B during parts lookup to reduce ordering errors.

Quality Assurance

VAICO parts are cataloged for OE-style replacement use and application-specific fitment. This part cross-references 034 129 101 and 034 129 101 A for the same application.