... :1) Engine: Genuine Cummins Engine2) Alternator:(Stamford, Leroy Somer, Marathon, ENGGA brushless alternator) 3 Phase 4 Wire, Brushless, H class Insulation, Self-Exited ,IP23 ... and document 2) Optional accessories: Engine coolant and oil heater, alternator space heater, cooling for heat exchanger, communication interface, battery charger ...