Cummins QSK38-G27 vs VMAN D30B1
The Cummins QSK38-G27 and VMAN D30B1 are both diesel generator engines in a similar power class. Both are rated at roughly 1,137 kVA. Displacement is 38 L versus 29.235 L. The table below compares their full specifications side by side.
| Specification | Cummins QSK38-G27 | VMAN D30B1 |
|---|---|---|
| Headline rating | 1,125 kVA | 1,148 kVA |
| Standby (50 Hz) | 900 kWe | — |
| Prime (50 Hz) | 818 kWe | — |
| Standby (60 Hz) | — | 918 kWe |
| Prime (60 Hz) | — | 828 kWe |
| Displacement | 38 L | 29.235 L |
| Configuration | V12 | V16 |
| Cylinders | 12 | 16 |
| Rated speed | 1,500 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | China National Stage III / Unregulated | Unregulated |
| Dry weight | — | — |
| Origin | China | China |
Choosing between Cummins QSK38-G27 and VMAN D30B1
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 D30B1 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.