Genuine OEM Audi Secondary Air Pump, part number 079959231H. This pump is a vital component in the vehicle's emissions control system, responsible for injecting fresh air into the exhaust stream to assist in the reduction of pollutants. It plays a key role in the catalytic converter's operation. Weighing 1.362 kg, this pump is engineered to meet strict factory specifications. Opting for a genuine OEM part ensures precise air flow, optimal performance, and long-term durability for effective emissions management.