The sixteen Vz800 Boulevard M50 2005 (k5) Usa (e03) Boulevardm50 Boulevard-m Front Master Cylinder (model K5/k6) component parts are all listed in this schematic.
Some items from this specific schematic: Boot, Cap, Plate,diaphragm, Hose,fr Brake.
Of all the components used in this assembly the Cylinder Assy,fr Master is the most expensive.