Genuine OEM Volkswagen Vacuum Reservoir, part number 03N131489A. This component is crucial for storing vacuum pressure, which is then used to operate various engine and emissions control systems. It helps maintain stable vacuum levels for consistent performance. Weighing 0.225 kg with dimensions of 0.2m x 0.1m x 0.075m, this reservoir is designed for precise integration within the engine bay. Choosing a genuine OEM part ensures the correct pressure retention and material integrity, critical for the reliability of vacuum-actuated components.