Cummins QSB3.9-G33 vs Yunnei DEF30CDA5
The Cummins QSB3.9-G33 and Yunnei DEF30CDA5 are both diesel generator engines in a similar power class. Both are rated at roughly 48 kVA. Displacement is 3.9 L versus 3 L. The table below compares their full specifications side by side.
| Specification | Cummins QSB3.9-G33 | Yunnei DEF30CDA5 |
|---|---|---|
| Headline rating | 48 kVA | 48 kVA |
| Standby (50 Hz) | 38 kWe | — |
| Prime (50 Hz) | 30 kWe | 38 kWe |
| Standby (60 Hz) | — | — |
| Prime (60 Hz) | — | — |
| Displacement | 3.9 L | 3 L |
| Configuration | L4 | L4 |
| Cylinders | 4 | 4 |
| Rated speed | 1,500 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | Euro Stage V |
| Dry weight | — | — |
| Origin | China | China |