Genuine OEM Volkswagen Injection Valve, part number 04C906031D. This valve is responsible for precisely metering and injecting fuel into the engine's combustion chamber. Its accurate calibration and precise operation are essential for optimal engine performance, fuel efficiency, and emissions control. The valve ensures the correct fuel spray pattern and flow rate required for proper combustion. Genuine OEM injection valves are manufactured to exact specifications, guaranteeing the correct spray pattern, flow rate, and response time for reliable engine operation and longevity.