Cummins 4B3.9-G12 Engine Performance Data
Cummins 4B3.9-G12 engine performance data, including 27kW prime power, 30kW standby power, fuel consumption and technical specifications at 1500RPM.
Dongfeng Cummins 4B3.9-G12 Diesel Engine
Introduction
The Dongfeng Cummins 4B3.9-G12 is a compact 4-cylinder diesel engine designed for small diesel generator sets. With a 3.9-litre naturally aspirated configuration, it provides a practical and reliable power solution for standby and prime power applications.
Key Specifications
| Engine Model | 4B3.9-G12 |
| Cylinders / Displacement | 4 / 3.9 L |
| Aspiration | Naturally Aspirated |
| Prime Power @ 1500 rpm | 27 kW / 36 HP |
| Standby Power @ 1500 rpm | 30 kW / 40 HP |
| Prime Power @ 1800 rpm | 33 kW / 44 HP |
| Standby Power @ 1800 rpm | 36 kW / 48 HP |
Generator Set Applications
The 4B3.9-G12 is suitable for compact diesel generator sets used in commercial facilities, workshops, agricultural applications, construction sites and other small-scale power requirements. It can be configured for both 50Hz and 60Hz generator sets.
Technical Datasheet
Download the complete 4B3.9-G12 technical datasheet for detailed engine performance curves, fuel consumption and engineering specifications.
