Genuine OEM Audi Heating Coolant Hose, part number 8R2819373F. This hose is specifically designed to transport coolant to and from the vehicle's heating system components, such as the heater core. Its function is crucial for providing warm air to the cabin, ensuring passenger comfort. Weighing 0.101 kg and measuring 0.31 m in length, this genuine OEM hose features precise routing and is constructed from materials resistant to coolant and temperature fluctuations, guaranteeing a reliable and leak-free connection within the HVAC system.