The Rear Brake Caliper is made up of components including this Caliper Sub Assy, which is the most expensive.
Some items from this specific schematic: Bolt,flange,nshf,, Caliper Sub Assy,, O-ring,2.5x1.5, Retainer,brkt.
On this parts fiche the Bolt,flange,nshf, is the most specified component.