Isuzu Commercial Truck of America Inc. set a new retail ... GVWR, while the NRR has a 19,500-lb. GVWR. The diesel-powered NPR-HD, NPR-XD, and NRR each use a 5.2-liter I4 turbocharged engine ...

At the other end of the 4.5-tonne GVM range sits the NPR 45-150 Servicepack which ... It’s also worth mentioning that Isuzu’s N-Series engines meet Euro 5 emissions standard for diesel engines.