Cummins QSB5G10 vs Deutz BF6L913
The Cummins QSB5G10 and Deutz BF6L913 are both diesel generator engines in a similar power class. Both are rated at roughly 79 kVA. Displacement is 4.5 L versus 6.128 L. The table below compares their full specifications side by side.
| Specification | Cummins QSB5G10 | Deutz BF6L913 |
|---|---|---|
| Headline rating | 79 kVA | 78 kVA |
| Standby (50 Hz) | 63 kWe | 62.1 kWe |
| Prime (50 Hz) | 58 kWe | 58.5 kWe |
| Standby (60 Hz) | 73 kWe | 73.8 kWe |
| Prime (60 Hz) | 66 kWe | 70.2 kWe |
| Displacement | 4.5 L | 6.128 L |
| Configuration | L4 | L6 |
| Cylinders | 4 | 6 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 / 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Air-Cooled |
| Emissions | U.S. EPA Final Tier 4 / EU Stage IIIA | Unregulated |
| Dry weight | — | — |
| Origin | United States / United Kingdom | Germany |
Choosing between Cummins QSB5G10 and Deutz BF6L913
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. The Cummins QSB5G10 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.