Genuine OEM Audi Secondary Air Pump Retainer, part number 4G0906617G. This component is designed to securely hold the secondary air pump in its designated position within the emissions system. It ensures the pump remains stable and functions correctly, preventing vibrations or displacement. Weighing 0.41 kg, this retainer is built to factory specifications. Choosing a genuine OEM retainer guarantees precise fitment and durability, maintaining the integrity of the secondary air system.