| Engine model | 4BT3.9-G2 |
| Engine style | Cummins G-drive diesel engine for generator |
| Type | In-line,4 stroke,water cooling,Direct injection |
| Cylinders No. | 4 Cylinders |
| Intake system | Turbocharged |
| Bore X Stroke | 102x120mm |
| Displacement | 3.9L |
| Compression ratio | 16.5:1 |
| Fuel system | BYC A4 injection pump + GAC governor |
| Governor type | Electronical |
| Governor ratio | 3% |
| Rotation | Clocewise (face to flywheel) |
| Prime Unlimited time power (Engine) | 36KW/1500RPM | 40KW/1800RPM |
| Standby power (Engine) | 40KW/1500RPM | 44KW/1800RPM |
| Prime Unlimited time power (Generator) | 32KW (40KVA) 50HZ | 33KW (42KVA) 60HZ |
| Standby power (Generator) | 35KW (44KVA) 50HZ | 37KW (46KVA) 60HZ |
| Cooling way | Positive water cooling cycle |
| Lubricant capacity | 11L |
| Coolant capacity | 19.8L |
| Electrical system | 24V |
| Fuel Consumption | 210g/kw.h |
| Net Weight | 321KG |
| Wet weight | 341KG |
| Overall Diemension(L*W*H) | 765mm*582mm*908mm |
| Package size(L*W*H) | 1080mm*625mm*1085mm |
| Radiator | With radiator and fan and pipes |
| Application | Small generator, water pump set,Air compressor |
