Caterpillar G3306 vs PSI 10L
The Caterpillar G3306 and PSI 10L are both natural gas generator engines in a similar power class. The PSI 10L is the higher-output unit (106 kVA vs 94 kVA). Displacement is 10.5 L versus 9.73 L. The table below compares their full specifications side by side.
| Specification | Caterpillar G3306 | PSI 10L |
|---|---|---|
| Headline rating | 94 kVA | 106 kVA |
| Standby (50 Hz) | — | 85 kWe |
| Prime (50 Hz) | 75 kWe | 85 kWe |
| Standby (60 Hz) | — | 100 kWe |
| Prime (60 Hz) | — | 100 kWe |
| Displacement | 10.5 L | 9.73 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,500 RPM | 1,500 / 1,800 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Stationary | U.S. EPA Stationary |
| Dry weight | — | 1070 kg |
| Origin | United States | United States |
Choosing between Caterpillar G3306 and PSI 10L
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 PSI 10L has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.