Cummins QSB5.9-G30 vs FPT NEF45 TE2P
The Cummins QSB5.9-G30 and FPT NEF45 TE2P are both diesel generator engines in a similar power class. Both are rated at roughly 140 kVA. Displacement is 5.9 L versus 4.5 L. The table below compares their full specifications side by side.
| Specification | Cummins QSB5.9-G30 | FPT NEF45 TE2P |
|---|---|---|
| Headline rating | 140 kVA | 140 kVA |
| Standby (50 Hz) | 112 kWe | — |
| Prime (50 Hz) | 90 kWe | — |
| Standby (60 Hz) | — | 112 kWe |
| Prime (60 Hz) | — | 102 kWe |
| Displacement | 5.9 L | 4.5 L |
| Configuration | L6 | L4 |
| Cylinders | 6 | 4 |
| Rated speed | 1,500 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | U.S. EPA Tier 3 |
| Dry weight | — | — |
| Origin | China | Italy |
Choosing between Cummins QSB5.9-G30 and FPT NEF45 TE2P
Use this comparison as an engineering shortlist, then confirm the complete generator package against load profile, voltage, 50/60 Hz frequency, duty class, emissions rules, cooling margin, altitude, ambient temperature, enclosure design, controller features, and alternator sizing.