Genuine OEM Audi Coolant Hose, part number 8J0820743M. This hose is a critical component of the vehicle's air conditioning system, designed to transport refrigerant between system components. It is typically located in the engine bay, connecting to the condenser and compressor. Constructed from reinforced rubber and metal fittings for durability and leak prevention. Genuine OEM parts ensure the correct material composition and pressure ratings for safe and efficient operation.