This is a NOS vacuum advance unit for the the years and makes listed below with 318 cubic inch engines and distributor #’s 2875342 & 2875343. This is a original NOS Mopar part in it’s original packaging.
318 cubic inch
Dart; Dart 170; Dart 270; Dart GT; Coronet, Coronet 440, Coronet 500, Charger; Polara,
Valiant; Signet; Barracuda; Satellite, Belvedere , Fury I, Fury II, Fury III,