Kawasaki KG-12 vs Mitsubishi 18KU30GSI-PLUS
The Kawasaki KG-12 and Mitsubishi 18KU30GSI-PLUS are both natural gas generator engines in a similar power class. The Mitsubishi 18KU30GSI-PLUS is the higher-output unit (7,188 kVA vs 6,500 kVA). Displacement is 407.2 L versus 483.5 L. The table below compares their full specifications side by side.
| Specification | Kawasaki KG-12 | Mitsubishi 18KU30GSI-PLUS |
|---|---|---|
| Headline rating | 6,500 kVA | 7,188 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | 5,200 kWe | 5,750 kWe |
| Standby (60 Hz) | — | — |
| Prime (60 Hz) | 5,000 kWe | — |
| Displacement | 407.2 L | 483.5 L |
| Configuration | V12 | L18 |
| Cylinders | 12 | 18 |
| Rated speed | 750 / 900 RPM | 750 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | — |
| Dry weight | — | 60000 kg |
| Origin | Japan | Japan |
Choosing between Kawasaki KG-12 and Mitsubishi 18KU30GSI-PLUS
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 18KU30GSI-PLUS has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.