Caterpillar never built trucks but only truck engines. Now most manufactorers, including Volvo, Paccar and Freightliner promote their own engines so that market gets smaller. Cat joined forces with Navistar and so a new truck brand was born: Cat Trucks. Very smart, because Cat has a strong reputation in the market.
These trucks are part of the Cat Trucks demofleet in Australia. I found the photo’s on Facebook.