Genuine OEM Audi Engine Non-Return Valve, part number 06M121349A. This small but vital valve is designed to permit fluid flow in only one direction within the engine's internal systems, preventing backflow and maintaining correct pressure and circulation. It is typically installed in fluid passages within the engine block or cylinder head. Weighing approximately 0.004 kg, this valve is engineered for precise operation. Using genuine OEM non-return valves ensures correct opening and closing pressures, material compatibility with engine fluids, and reliable long-term performance, preventing system malfunctions.

Catalogue entry: VALVE ×2.