Cummins diesel engine, Bosch electrics, Borg Warner transfer case, Dana running gear and a Getrag transmission - all known good brands that are bolted together well and fully supported here in NZ.
Neither have had any issues with them, they come standard in NZ with all the accessories that you have to pay extra for with other brands, and a reasonable price - quick look on trademe shows ~$90k for an Amarok, ~$45k for a Tunland, both brand new.
I quite like them and would happily drive one myself. Little bit bouncy in the rear when unladen, but they are a ute designed to carry a load, and feel very nice when they are. Go off road quite nicely too, more than capable of keeping up with a Navara, and run rings around the latest Triton (which is now almost a slightly raised station wagon as opposed to a ute).