Cummins C175N6B vs PSI 11L
The Cummins C175N6B and PSI 11L are both natural gas generator engines in a similar power class. Both are rated at roughly 219 kVA. Displacement is 8.9 L versus 11.05 L. The table below compares their full specifications side by side.
| Specification | Cummins C175N6B | PSI 11L |
|---|---|---|
| Headline rating | 218 kVA | 219 kVA |
| Standby (50 Hz) | — | 175 kWe |
| Prime (50 Hz) | — | 150 kWe |
| Standby (60 Hz) | 175 kWe | 200 kWe |
| Prime (60 Hz) | — | 175 kWe |
| Displacement | 8.9 L | 11.05 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,800 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 | — | 1179 kg |
| Origin | United States | United States |
Choosing between Cummins C175N6B and PSI 11L
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 11L has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.