Cummins QSX15G4 vs Hyundai DP126CBK
The Cummins QSX15G4 and Hyundai DP126CBK are both diesel generator engines in a similar power class. Both are rated at roughly 448 kVA. Displacement is 15 L versus 11.1 L. The table below compares their full specifications side by side.
| Specification | Cummins QSX15G4 | Hyundai DP126CBK |
|---|---|---|
| Headline rating | 450 kVA | 445 kVA |
| Standby (50 Hz) | 360 kWe | 356 kWe |
| Prime (50 Hz) | 327 kWe | 321 kWe |
| Standby (60 Hz) | 400 kWe | — |
| Prime (60 Hz) | 355 kWe | — |
| Displacement | 15 L | 11.1 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Tier 2 / EU Stage II | U.S. EPA Tier 2 |
| Dry weight | — | — |
| Origin | United States | South Korea |
Choosing between Cummins QSX15G4 and Hyundai DP126CBK
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 QSX15G4 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.