This is NOS carb choke for all of the years and models listed below. This is a original NOS Mopar/Carter part.
1826084 [same as Carter 170-AU-516S & 170-AX-516S]
318 cubic inch with Power Package
Savoy; Belvedere; Fury; Sport Fury; 1958; 1959 with carburetor numbers 2812S & 2813S