1,Cummins 4B3.9-G1 2,Output: 20KW, AC 3 Phase 3, ... ,1200 hours warranty Our factory Have Cummins, Volvo, Deutz, daewoo, Shangchai, Weichai, Jichai etc brand generator set, and silent/low noise/spound ... ,ISO,CQC certificate. genset power range: 25-2000kva, alternator power range: 6.5-1760kw. Technical parameters of diesel generator sets:Generator SetGenerator ModelGF20CPrime Power20kwRated Voltage400 ...