Genuine OEM Volkswagen Coolant Pump Water Connection, part number 0XW121438B. This connection is designed to link coolant lines directly to the engine's coolant pump, facilitating efficient circulation of coolant throughout the engine. Proper coolant circulation is essential for maintaining optimal engine operating temperature and preventing overheating. The part has dimensions of 0.333 m x 0.333 m x 0.333 m and weighs 0.333 kg. Genuine OEM ensures the correct fit and material properties for reliable performance.