Genuine OEM Audi Secondary Air Pump, part number 07K959253A. This crucial component is part of the vehicle's emissions control system, designed to inject fresh air into the exhaust stream. This process helps to oxidize unburnt hydrocarbons and carbon monoxide, thereby reducing harmful emissions. The pump features a robust electric motor and housing, weighing approximately 1.117 kg. Installing a genuine OEM secondary air pump ensures precise air delivery, proper emissions compliance, and reliable operation of your vehicle's exhaust system.