Cummins 4B3.9-G2 Engine Performance Data
Cummins 4B3.9-G2 engine performance data with power ratings, fuel consumption and technical specifications at 1500RPM for diesel generator applications.
Dongfeng Cummins 4B3.9-G2 Diesel Engine – Technical Data
The Dongfeng Cummins 4B3.9-G2 is a 3.9-litre, 4-cylinder naturally aspirated diesel engine developed for compact generator set applications. Its simple engine configuration and proven mechanical design make it a practical choice for small power generation systems.
The FR92539 performance data specifies operation at 1500 rpm, with a prime power output of 24kW and standby power of 27kW. The datasheet provides the corresponding fuel consumption data and engine performance information for generator set applications.
Key Specifications
| Engine Model | 4B3.9-G2 |
| Engine Brand | Dongfeng Cummins |
| Cylinders | 4 |
| Displacement | 3.9 L |
| Aspiration | Naturally Aspirated |
| Prime Power | 24 kW / 32 HP @ 1500 rpm |
| Standby Power | 27 kW / 36 HP @ 1500 rpm |
Performance Highlights
The FR92539 rating is based on a 1500 rpm operating speed, making this engine configuration suitable for 50Hz generator sets. At 100% prime load, the published fuel consumption is approximately 6.7 litres per hour.
The technical document does not provide a rated 1800 rpm performance configuration, so the available data should be used when matching the engine with the generator set and alternator.
Technical Datasheet
The downloadable FR92539 technical datasheet contains the complete engine performance curve, fuel consumption data, engine specifications and operating information for the Dongfeng Cummins 4B3.9-G2.
Generator Set Application
With its compact 3.9-litre engine platform and 24kW prime power rating, the 4B3.9-G2 is intended for smaller diesel generator sets used for standby power, construction sites, commercial facilities and general-purpose power supply.
For complete technical data or generator set matching information, please refer to the downloadable datasheet or contact GENLITEC POWER.
