Genuine OEM Audi Coolant Hose Connector, part number 1J0121087B. This plastic elbow connector is designed to join hoses within the engine cooling system, ensuring proper coolant flow and preventing leaks. It features a main connection and a smaller barb for an auxiliary line. Weighing 0.042 kg, this component is critical for maintaining the cooling system's integrity. Genuine OEM connectors ensure precise fitment and resistance to temperature and pressure fluctuations, preventing coolant loss.