Cummins QSB5.9-G31 vs SDEC 4HTAA4.5-G5E6
The Cummins QSB5.9-G31 and SDEC 4HTAA4.5-G5E6 are both diesel generator engines in a similar power class. Both are rated at roughly 157 kVA. Displacement is 5.9 L versus 4.5 L. The table below compares their full specifications side by side.
| Specification | Cummins QSB5.9-G31 | SDEC 4HTAA4.5-G5E6 |
|---|---|---|
| Headline rating | 156 kVA | 158 kVA |
| Standby (50 Hz) | 125 kWe | 126 kWe |
| Prime (50 Hz) | 100 kWe | 112 kWe |
| Standby (60 Hz) | — | — |
| Prime (60 Hz) | — | — |
| Displacement | 5.9 L | 4.5 L |
| Configuration | L6 | L4 |
| Cylinders | 6 | 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 |