Genuine OEM Volkswagen Coolant Hose With Coupling, part number 5WA122101S. This hose is an integral part of the engine cooling system, responsible for circulating engine coolant to regulate temperature. It features a factory-integrated coupling for secure and leak-proof connections. Weighing 0.7 kg, this genuine OEM coolant hose is manufactured from heat-resistant materials with precise dimensions and coupling design, ensuring proper flow, durability, and a reliable seal under varying engine conditions.