Cummins QSK50G11 vs VMAN DE58B5
The Cummins QSK50G11 and VMAN DE58B5 are both diesel generator engines in a similar power class. Both are rated at roughly 1,704 kVA. Displacement is 50 L versus 57.2 L. The table below compares their full specifications side by side.
| Specification | Cummins QSK50G11 | VMAN DE58B5 |
|---|---|---|
| Headline rating | 1,700 kVA | 1,708 kVA |
| Standby (50 Hz) | 1,360 kWe | — |
| Prime (50 Hz) | 1,232 kWe | — |
| Standby (60 Hz) | 1,500 kWe | 1,366 kWe |
| Prime (60 Hz) | 1,365 kWe | 1,242 kWe |
| Displacement | 50 L | 57.2 L |
| Configuration | V16 | V12 |
| Cylinders | 16 | 12 |
| Rated speed | 1,500 / 1,800 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | Unregulated |
| Dry weight | — | — |
| Origin | United Kingdom | China |
Choosing between Cummins QSK50G11 and VMAN DE58B5
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 VMAN DE58B5 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.