Cummins 4B3.9-G11 Engine Performance Data
Download Cummins 4B3.9-G11 engine performance data, technical specifications, fuel consumption and key parameters for diesel generator applications.
Dongfeng Cummins 4B3.9-G11 Diesel Engine – Technical Data
The Dongfeng Cummins 4B3.9-G11 is a compact 3.9-litre, 4-cylinder naturally aspirated diesel engine designed for small diesel generator sets. Its straightforward configuration and compact size make it suitable for applications where reliable and economical power generation is required.
According to the 4B3.9-G11 generator engine performance data, the engine delivers 20kW prime power and 22kW standby power at 1500 rpm, while the 1800 rpm rating provides 23kW prime power and 26kW standby power.
Key Specifications
| Engine Model | 4B3.9-G11 |
| Engine Brand | Dongfeng Cummins |
| Cylinders | 4 |
| Displacement | 3.9 L |
| Aspiration | Naturally Aspirated |
| Prime Power | 20 kW / 27 HP @ 1500 rpm |
| Standby Power | 22 kW / 29 HP @ 1500 rpm |
Performance Highlights
The 4B3.9-G11 data covers both 1500 rpm and 1800 rpm operating conditions, allowing the engine to be matched with generator sets for different frequency requirements. At 1800 rpm, the published rating reaches 23kW prime power and 26kW standby power.
Technical Datasheet
The downloadable 4B3.9-G11 technical datasheet provides the complete engine performance curves, power ratings and detailed technical information for the Dongfeng Cummins 4B3.9-G11 engine.
Generator Set Application
The 4B3.9-G11 is well suited to compact diesel generator sets for commercial facilities, construction projects, backup power and other small-scale power generation applications. Its 1500 rpm and 1800 rpm performance ratings provide flexibility for generator set configurations using either 50Hz or 60Hz systems.
For complete technical specifications or generator set matching information, please refer to the downloadable datasheet or contact GENLITEC POWER.
