Mitsubishi S6U2-PTA vs SDEC 16XTAA38-G31
The Mitsubishi S6U2-PTA and SDEC 16XTAA38-G31 are both diesel generator engines in a similar power class. Both are rated at roughly 1,661 kVA. Displacement is 81.43 L versus 38 L. The table below compares their full specifications side by side.
| Specification | Mitsubishi S6U2-PTA | SDEC 16XTAA38-G31 |
|---|---|---|
| Headline rating | 1,657 kVA | 1,665 kVA |
| Standby (50 Hz) | 1,325.6 kWe | 1,332 kWe |
| Prime (50 Hz) | 1,240.8 kWe | 1,215 kWe |
| Standby (60 Hz) | 1,193.6 kWe | — |
| Prime (60 Hz) | 1,134.4 kWe | — |
| Displacement | 81.43 L | 38 L |
| Configuration | L6 | V16 |
| Cylinders | 6 | 16 |
| Rated speed | 900 / 1,080 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | China National Stage III / Unregulated |
| Dry weight | 8650 kg | — |
| Origin | Japan | China |
Choosing between Mitsubishi S6U2-PTA and SDEC 16XTAA38-G31
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 SDEC 16XTAA38-G31 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.