Cummins QSK38-G32 vs MTU MTU 12V4000 G83
The Cummins QSK38-G32 and MTU MTU 12V4000 G83 are both diesel generator engines in a similar power class. Both are rated at roughly 1,759 kVA. Displacement is 38 L versus 57.199 L. The table below compares their full specifications side by side.
| Specification | Cummins QSK38-G32 | MTU MTU 12V4000 G83 |
|---|---|---|
| Headline rating | 1,760 kVA | 1,758 kVA |
| Standby (50 Hz) | 1,408 kWe | — |
| Prime (50 Hz) | 1,300 kWe | — |
| Standby (60 Hz) | — | 1,406 kWe |
| Prime (60 Hz) | — | 1,278 kWe |
| Displacement | 38 L | 57.199 L |
| Configuration | V12 | V12 |
| Cylinders | 12 | 12 |
| Rated speed | 1,500 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | China National Stage III / Unregulated | U.S. EPA Tier 2 |
| Dry weight | — | — |
| Origin | China | Germany |
Choosing between Cummins QSK38-G32 and MTU MTU 12V4000 G83
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 QSK38-G32 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.