Cummins KTAA19-G6A vs Mitsubishi S6R-PTA
The Cummins KTAA19-G6A and Mitsubishi S6R-PTA are both diesel generator engines in a similar power class. Both are rated at roughly 683 kVA. Displacement is 19 L versus 24.51 L. The table below compares their full specifications side by side.
| Specification | Cummins KTAA19-G6A | Mitsubishi S6R-PTA |
|---|---|---|
| Headline rating | 688 kVA | 677 kVA |
| Standby (50 Hz) | 550 kWe | 541.6 kWe |
| Prime (50 Hz) | — | 489.6 kWe |
| Standby (60 Hz) | 600 kWe | 622.4 kWe |
| Prime (60 Hz) | — | 565.6 kWe |
| Displacement | 19 L | 24.51 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 / 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | Unregulated |
| Dry weight | — | 2800 kg |
| Origin | China | Japan |
Choosing between Cummins KTAA19-G6A and Mitsubishi S6R-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 KTAA19-G6A has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.