The fourteen Gs500f 2005 (k5) Usa (e03) Front Caliper (model K4/k5/k6) component parts are all listed in this schematic.
The component with the lowest price in the FRONT CALIPER (MODEL K4/K5/K6) schematic is the Spring.
Parts such as the Front Caliper (model K4/k5/k6): Bleeder, Cap, Insulator, Clip are included in the Gs500f 2005 (k5) Usa (e03) Front Caliper (model K4/k5/k6) parts fiche.