Cummins QSK38-G8 vs Mitsubishi S6R2-PTAA
The Cummins QSK38-G8 and Mitsubishi S6R2-PTAA are both diesel generator engines in a similar power class. Both are rated at roughly 821 kVA. Displacement is 37.7 L versus 29.96 L. The table below compares their full specifications side by side.
| Specification | Cummins QSK38-G8 | Mitsubishi S6R2-PTAA |
|---|---|---|
| Headline rating | 821 kVA | 821 kVA |
| Standby (50 Hz) | 657 kWe | 657 kWe |
| Prime (50 Hz) | 591 kWe | 598.5 kWe |
| Standby (60 Hz) | — | 535.5 kWe |
| Prime (60 Hz) | — | 486 kWe |
| Displacement | 37.7 L | 29.96 L |
| Configuration | V12 | L6 |
| Cylinders | 12 | 6 |
| Rated speed | 1,500 RPM | 1,500 / 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Tier 2 | Unregulated |
| Dry weight | — | — |
| Origin | United States | Japan |