Air Line Suzie Coils Pair Air Line Suzie Coils Pair, complete with C Type Male fitting one end and Female C Type the other. The ‘Suzies’ air lines found at the rear of a tractor unit when coupling/uncoupling to a (semi) trailer. There are usually two air lines. Red for the emergency line or yellow for the service lines which provide compressed air from the tractor unit to the brakes of the trailer. 7m Working Length Saving of £14.50 against buing individually
