Genuine OEM Audi Air Pump Ventilation Hose, part number 06A131127L. This hose plays a vital role in the secondary air injection system by facilitating proper air circulation to the air pump, which helps reduce emissions. Measuring 0.261 meters in length and weighing 0.037 kg, it features specific connectors for a precise fit. Using a genuine OEM hose ensures correct routing geometry, material resistance to engine bay conditions, and proper function within the emissions system.