Genuine OEM Volkswagen Intake Manifold Vacuum Unit, part number 04L129061A. This unit is responsible for controlling vacuum levels within the intake manifold system, which is critical for regulating air flow and engine operation. It is typically integrated into the intake manifold assembly. Made from durable plastic, it measures approximately 0.155m long, 0.085m wide, and 0.07m high. Genuine OEM vacuum units ensure precise calibration and reliable operation, which is essential for maintaining optimal engine efficiency and emissions.