For 1941-1942 Buick Special Series 40-A Brake Master Cylinder Repair Kit Dorman. 1941 Buick Special Series 40-A Bore: 1 In. | w/Manual Brakes;. 1942 Buick Special Series 40-A Bore: 1 In. Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience.
