... regulator,auto exciter,auto adjustment.Standard Accessory of Perkins power generation :Common steel base frame , ... Perkins power generation :Engine coolant and oil heater,Alternator space heater,Cooling for heat exchanger,Control system with RS232/485 communication ... 1000 hours free warrantyOpen type Perkins Generator :silent type Perkins Generator Perkins OEM Certificate Powertec Workshop Super ...