Caterpillar G3616 vs Mitsubishi 12KU30GSI
The Caterpillar G3616 and Mitsubishi 12KU30GSI are both natural gas generator engines in a similar power class. The Mitsubishi 12KU30GSI is the higher-output unit (4,750 kVA vs 4,375 kVA). Displacement is 295.5 L versus 322.3 L. The table below compares their full specifications side by side.
| Specification | Caterpillar G3616 | Mitsubishi 12KU30GSI |
|---|---|---|
| Headline rating | 4,375 kVA | 4,750 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | 3,500 kWe | 3,800 kWe |
| Standby (60 Hz) | — | — |
| Prime (60 Hz) | — | — |
| Displacement | 295.5 L | 322.3 L |
| Configuration | V16 | L12 |
| Cylinders | 16 | 12 |
| Rated speed | 1,000 RPM | 750 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Stationary | — |
| Dry weight | — | 40000 kg |
| Origin | United States | Japan |
Choosing between Caterpillar G3616 and Mitsubishi 12KU30GSI
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 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.