The product is a NOS (New Old Stock) backup light switch designed for Ford trucks from the years 1969, 1970, 1972, 1975, 1977, and 1979. It is specifically made for Ford F100, F250, and F350 models. The switch bears the manufacturer part number C9TZ 15520 C and is branded as Ford. This part is an essential component for ensuring the proper functioning of the backup lights on these vintage Ford truck models. Ready to install. Ready to ship.