Genuine OEM Volkswagen Engine Water Connection, part number 0XW121438. This component serves as a vital link, connecting coolant lines to the engine's coolant regulator. Its function is to ensure proper coolant flow and facilitate precise temperature regulation within the engine. The connection measures 0.175 m in length, 0.1 m in width, and 0.072 m in height, weighing 0.1086 kg. Genuine OEM ensures exact dimensions and material integrity for leak-free operation.