Cummins QSK50G16 vs Mitsubishi S8U-PTA
The Cummins QSK50G16 and Mitsubishi S8U-PTA are both diesel generator engines in a similar power class. Both are rated at roughly 1,997 kVA. Displacement is 50 L versus 94.1 L. The table below compares their full specifications side by side.
| Specification | Cummins QSK50G16 | Mitsubishi S8U-PTA |
|---|---|---|
| Headline rating | 2,000 kVA | 1,993 kVA |
| Standby (50 Hz) | 1,600 kWe | 1,594.4 kWe |
| Prime (50 Hz) | 1,500 kWe | 1,538.4 kWe |
| Standby (60 Hz) | — | 1,712 kWe |
| Prime (60 Hz) | — | 1,631.2 kWe |
| Displacement | 50 L | 94.1 L |
| Configuration | V16 | V8 |
| Cylinders | 16 | 8 |
| Rated speed | 1,500 RPM | 900 / 1,080 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | China III / U.S. EPA Tier 2 | Unregulated |
| Dry weight | — | 11000 kg |
| Origin | China | Japan |
Choosing between Cummins QSK50G16 and Mitsubishi S8U-PTA
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 QSK50G16 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.