Mitsubishi 12KU30GSI-PLUS vs Waukesha 275GL+ 16V
The Mitsubishi 12KU30GSI-PLUS and Waukesha 275GL+ 16V are both natural gas generator engines in a similar power class. Both are rated at roughly 4,635 kVA. Displacement is 322.3 L versus 285 L. The table below compares their full specifications side by side.
| Specification | Mitsubishi 12KU30GSI-PLUS | Waukesha 275GL+ 16V |
|---|---|---|
| Headline rating | 4,750 kVA | 4,520 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | 3,800 kWe | 3,616 kWe |
| Standby (60 Hz) | — | — |
| Prime (60 Hz) | — | — |
| Displacement | 322.3 L | 285 L |
| Configuration | L12 | V16 |
| Cylinders | 12 | 16 |
| Rated speed | 750 RPM | 1,000 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | — | Unregulated |
| Dry weight | 40000 kg | — |
| Origin | Japan | United States |
Choosing between Mitsubishi 12KU30GSI-PLUS and Waukesha 275GL+ 16V
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 Mitsubishi 12KU30GSI-PLUS has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.