Genuine OEM Audi Secondary Air Pump Retainer, part number 4H0906617AE. This robust metal bracket is designed to securely mount and stabilize the secondary air pump within the vehicle's emissions system. Proper retention of the air pump is crucial for its stable operation and to prevent vibrations or damage. Weighing 0.359 kg, this genuine OEM retainer provides the precise fit and structural integrity required to support this vital emissions component, ensuring long-term reliability.