On this parts fiche the Clamp is the most specified component.
The Kaf620-pef Mule4000 2014 Usa Brake Piping consists of fourteen pieces with the Pipe-brake,middle,rh being the most expensive.
Some items from this specific schematic: Hose-brake,rr, Pin-hair, Pipe-brake,middle,rh, Bolt-flanged,6x20.