Genuine OEM Audi Coolant Regulator, part number 032121110B. This essential component precisely controls the flow of engine coolant, ensuring the engine reaches and maintains its optimal operating temperature. Weighing 0.06 kg and measuring 0.06m in length, it is designed for accurate thermal management. Using a genuine OEM coolant regulator ensures reliable performance and prevents engine damage from improper temperature regulation, contributing to engine longevity.