On New Old stock master cylinder kit made by international parts corporation in the United States part number b553 to fit the following models read carefully as it may differ from the auction title. 1935 to 1940 Lafayette, 1935 to 1942 Nash, 1937 to 1942 Packard models 1603-4-5-6-7-8,  1940; international harvester truck, 1935 to 1942 Studebaker this has a 1 1/8 in cup