Genuine OEM Audi Auxiliary Water Pump, part number 8E0965559. This pump is designed to circulate coolant through auxiliary systems, such as the heater core or for additional engine cooling support. It plays a vital role in maintaining optimal operating temperatures under various conditions. The pump is typically located within the engine's cooling circuit. Genuine OEM parts are manufactured to strict tolerances, ensuring the correct flow rate, pressure, and electrical compatibility for long-lasting and reliable performance.