Product Parameter
| Type | In-line four-cylinder, water-cooled, four-stroke |
| Bore×stroke | 102×120mm |
| Displacement | 3.9L |
| Air intake method | Turbocharged |
| Maximum power | 148/110 (horsepower/kw) |
| Rated speed | 2200 r/min |
Cummins 4B3.9 Engine advantage
1.Advanced design and sophisticated manufacturing, adapt to various harsh working conditions, high strength, strong ability to work under heavy loads. 2.Cylinder block and cylinder head adopt integrated design to prevent the occurrence of engine water and oil leakage. The parts are about 40% less than other similar engines, and the failure rate is greatly reduced.. 3.The cylinder bore adopts a platform mesh honing design, the perfect geometric structure effectively prevents oil leakage, and the use of advanced technologies such as new piston ring components and gasket crimping molding reduces oil loss. 4.Adopt Holset supercharger with integral wastegate valve, low speed response and strong power. The three-stage fuel filter ensures a balanced level of particle dispersion, protects the main components of the fuel system, and maximizes the life of the engine.4B3.9 Engine Model Diversity
| Engine Model | rated power kW/rpm | Standby power/speed kW/rpm | Cylinders Qty | Displacement L | Air intake method |
| 4BT3.9-GM47 | 47@1500 | 52@1500 | 4 | 3.9 | Turbocharged |
| 4BT3.9-GM55 | 55@1500 | 61@1500 | 4 | 3.9 | Turbocharged |
| 4BT3.9-GM65 | 65@1800 | 72@1800 | 4 | 3.9 | Turbocharged |
Engine Pictures
Product application
4BTAA3.9 engine is Dongfeng Cummins engine, used in passenger cars and construction machinery. Construction machinery is mainly used in excavator series, such as XCMG XE150D, LISHIDE SC130.8, Foton Lovol FR139-7 and Lonking LG6235, etc...
