Dorman M3434 Brake Master Cylinder. Fits what vehicles: 1940 Chevrolet Master 85, 1940-1942 Chevrolet Special Deluxe, 1941-1942 Chevrolet Fleetline, 1941-1942 Chevrolet Fleetmaster, 1946-1952 Chevrolet Fleetline, 1946-1948 Chevrolet Fleetmaster, 1946-1948 Chevrolet Stylemaster Series, 1949-1952 Chevrolet Styleline Deluxe, 1949-1952 Chevrolet Styleline Special, 1950-1952 Chevrolet Bel Air.
