Genuine OEM Volkswagen Coolant Hose Connector, part number 1K0121087H. This plastic fitting serves to connect and distribute coolant hoses within the engine cooling system, ensuring proper routing and flow of coolant. It is installed as part of the vehicle's cooling circuit. Made from durable, heat-resistant plastic (PA6.6GF30), it measures approximately 10 cm in length. Using a genuine OEM coolant hose connector guarantees precise dimensions and material integrity, preventing leaks and maintaining the efficiency of the engine cooling system.