Genuine OEM Audi Additional Coolant Pump, part number 078121601A. This electric pump is designed to circulate coolant within the engine cooling system, assisting in maintaining optimal operating temperatures, especially under specific conditions or after engine shutdown. It operates on a 12V electrical system. Weighing approximately 0.36 kg, genuine OEM coolant pumps ensure correct flow rates, pressure, and electrical compatibility, preventing overheating and extending engine life.