View 10 Photos View 0 Videos 2002 Cummins GTA28 Natural Gas Generator Newly Listed $119,900 USD Cummins 500 kW standby natural gas generator. Cummins GTA28 engine rated 770 HP at 1800 RPM, SN-25281155. 3/60/277/480V, 12 lead reconnectable to other voltages. 800 Amp main-line circuit... ConditionUsedUsage496 HoursHorse Power770 HPEngine ModelCummins GTA28Stock NumberCentral States #5119 MLS Number14516983CategoryGenerator Sets Last Updated7/31/2026 LocationWaukesha, WI, US Sold ByCentral States Diesel Generators (833) 446-___ SHOWNUMBERCall Seller Email Seller Save More Info