Radiator Pressure Cap NOS (new old stock). Part number is 850797. Fits the following:

Buick-1940-1946 All; 1947 All
Cadillac-1939-1940 All
Ford-1949-1951 Part; 1952-1953 V-8
Hudson- 1950-1952 All; 1953 Except Jet
Mercury-1949-1952 All; 1953 (early)
Packard-1940 1800; 1941 1903-04-05-06; 1942-1952 All
Studebaker-1954 All; 1955 Comm. (early) 1954 Trucks All

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. (21708)