Cummins QSK50-G3 vs Mitsubishi S12R-Y2PTAW-1
The Cummins QSK50-G3 and Mitsubishi S12R-Y2PTAW-1 are both diesel generator engines in a similar power class. Both are rated at roughly 1,562 kVA. Displacement is 50.3 L versus 49.03 L. The table below compares their full specifications side by side.
| Specification | Cummins QSK50-G3 | Mitsubishi S12R-Y2PTAW-1 |
|---|---|---|
| Headline rating | 1,561 kVA | 1,563 kVA |
| Standby (50 Hz) | 1,249 kWe | — |
| Prime (50 Hz) | 1,120 kWe | — |
| Standby (60 Hz) | 1,422 kWe | 1,250 kWe |
| Prime (60 Hz) | 1,280 kWe | 1,125 kWe |
| Displacement | 50.3 L | 49.03 L |
| Configuration | V16 | V12 |
| Cylinders | 16 | 12 |
| Rated speed | 1,500 / 1,800 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Tier 2 | U.S. EPA Tier 2 |
| Dry weight | — | — |
| Origin | United States | Japan |