Brake Master Cylinder Assembly 25.4mm Diam ( 1.00 )Bristol 403 404 1948 to 1955Bristol 405 1953 to 1958Alvis TD20 1950 to 1958Humber Super Snipe MK4 1954 to 1957 Drum/Drum

Front Wheel Cylinder Assembly 28.57mm Diam ( 1-1/8 )Bristol 403 404 1948 to 1955Alvis TD20 1950 to 1958Humber Super Snipe MK4 1954 to 1957Jaguar XK120 1948 to 1954Austin Sheerline 1947 to 1953

Rear Wheel Cylinder Assembly 28.57mm Diam ( 1-1/8 )Bristol 403 404 1948 to 1955Alvis TD20 1950 to 1958Humber Super Snipe MK4 1954 to 1957Jaguar XK120 1948 to 1954Austin Sheerline 1947 to 1953