Everhot Vacuum Heater Shut Off Valve. Item part number is No. H-1956. Item fits the following:

1968 Buick Lesabre with auto AC
1968-1970 Oldsmobile
1985 Ford with auto AC

Contact seller for more information if needed: 520-275-4623. Tucson Packard quality parts through the years, 40 years experience working with all makes and models of Packard auto and other auto parts. (22305)