Reservoir Cap to suit many American built vehicles dating from 1930.
Suits Chevrolet, Buik, Pontiac, Studebaker, Jeep, Dodge, Plymouth, Desoto.
Also fits many Master cylinders made by PBR in Australia for industrial and commecial applications, as well as Dodge, International.
Please feel free to contact Power Brakes to confirm this is the correct resevoir cap for your application.
Thread size is 1-1/2 x 18