Genuine OEM Audi Coolant Hose, part number 8J0121073D. This hose is a critical part of the engine cooling system, responsible for circulating coolant to regulate engine temperature and prevent overheating. It is positioned within the engine cooling system, connecting various components. Weighing 0.344 kg, this genuine OEM hose is constructed from durable, heat-resistant materials to ensure leak-free operation and maintain the integrity of the cooling system under demanding conditions.