Genuine OEM Audi Water Pump, part number 057121011R. This vital component is at the heart of the engine's cooling system, responsible for continuously circulating coolant through the engine block, cylinder head, and radiator. This circulation dissipates heat, preventing the engine from overheating and maintaining optimal operating temperatures for efficiency and longevity. Weighing 2.55 kg, this pump is constructed from durable materials. Using a genuine OEM water pump ensures correct flow rates, pressure, and long-term reliability, preventing costly engine damage from overheating.