This is an OEM NOS molded rubber heater hose made by Audi for the 1979-1981 80 Fox model. Manufactured in Germany, this hose is 6" long and clamp-on style, designed for the engine compartment. It is a vintage part that is petroleum-resistant and includes the hose only. The part number is 049121063G, with interchange part numbers 18762, 71400, and CHE0518R. This hose is not a universal fitment and is suitable for specific Audi models within the specified years.