Cummins 4BTA3.9-GM47 Marine Engine specification data
| General data of Cummins 4BTA3.9-GM47 Marine Auxiliary Engine | |
| Engine Model | Cummins 4BTA3.9-GM47 |
| Type | 4 cylinder in line |
| Displacement | 3.9 L |
| Bore&Stroke | 102×114 mm |
| Dry Weight | 338 KG |
| Dimension(L*W*H) | 867*544*988 (mm) |
| Center of gravity from front face of block | 262 mm |
| Center of gravity above crankshaft centerline | 160 mm |
| Rated Output | 47KW/63HP |
| Standby Output | 52KW/70HP |
| Aspiration | Turbocharged & Water-Air Intercooled |
| Fuel System | A Pump/GAC Governor Regulation ≤3% |
| Coolant capacity-engine only | 7.9 litre |
| Idle speed | 950-1050 |
| Compression ratio | 17.3:1 |
| Firing Order | 1-3-4-2 |
| Cooling Method | Water Cooled |
| Manufacture Plant | Dongfeng Cummins Plant |
