This kit is designed to match the original parts and hardware required to repair the brake master cylinder on specified vehicles. Made of quality components, this kit is engineered for reliable performance and durability. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Buick Century Series 60: 1937, 1938, 1939, 1940, 1941, 1942] - [Buick Century: 1954, 1955, 1957] - [Buick Limited Series 80: 1940] - [Buick Limited Series 90: 1937, 1938, 1939, 1940, 1941, 1942] - [Buick Roadmaster Series 70: 1940, 1941, 1942, 1946, 1947, 1948, 1949] - [Buick Roadmaster Series 80: 1937, 1938, 1939, 1940] - [Buick Roadmaster Series 90: 1937, 1938, 1939] - [Buick Roadmaster: 1950, 1951, 1952, 1953, 1954, 1955, 1957] - [Buick Skylark: 1954] - [Buick Special 40: 1937, 1938, 1939, 1940] - [Buick Special Series 40: 1946, 1947, 1948, 1949] - [Buick Special Series 40-A: 1941, 1942] - [Buick Special Series 40-B: 1941, 1942] - [Buick Special: 1950, 1951, 1952, 1953, 1954, 1955, 1957] - [Buick Super Series 50: 1940, 1941, 1942, 1946, 1947, 1948, 1949] - [Buick Super: 1950, 1951, 1952, 1953, 1954, 1955, 1957]