Most replacement parts will interchange from a standard USA version of the Trooper, bearings, rotors, u joints, brake pads. etc... plugs? I am assuming glow plugs? Glow plugs come in standard sizes, only a couple different styles out there. Should be able to go to the local Auto parts store and match em up, Filters on the other hand, u should be able to find the OE part numbers and cross reference them to local manufacturers. The hardest things to find would be the engine internals. I would imagine the water pump might be difficult also. If i was to import one, i would have the exporter pick up a new water pump and ship it in the trooper as a spare. I would also imagine that fuel filters should interchange with some of the Isuzu HD stuff such as the NPR/NQR cab over trucks.

Is it legal to operate a vehicle on US roads with a right hand drive arrangement?