The twenty-one Xj600s 2002 4brj Sweden 1a4br-300e1 Front Brake Caliper component parts are all listed in this schematic.
The lowest price component in this Front Brake Caliper parts-list fiche is the Bolt(3ef).
Some items from this specific schematic: Brake Pad Kit (nas), Boot 2, Pin, Slide, Support, Pad.