Genuine OEM Audi Auxiliary Water Pump, part number 7N0965561B. This pump is responsible for circulating coolant within auxiliary heating or cooling systems, such as those for turbochargers, cabin heaters, or battery cooling. It is an integral part of the vehicle's thermal management. Weighing 0.386 kg, this electric pump is designed for reliable and quiet operation. Choosing a genuine OEM auxiliary water pump ensures correct flow rates, electrical compatibility, and resistance to coolant chemicals, which is essential for maintaining optimal operating temperatures and preventing system damage.