Cummins C300N6 vs Guascor G-18SL
The Cummins C300N6 and Guascor G-18SL are both natural gas generator engines in a similar power class. Both are rated at roughly 378 kVA. Displacement is 14 L versus 18 L. The table below compares their full specifications side by side.
| Specification | Cummins C300N6 | Guascor G-18SL |
|---|---|---|
| Headline rating | 375 kVA | 380 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | — | 304 kWe |
| Standby (60 Hz) | 300 kWe | — |
| Prime (60 Hz) | — | 336 kWe |
| Displacement | 14 L | 18 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 | Unregulated |
| Dry weight | — | — |
| Origin | United States | Spain |
Choosing between Cummins C300N6 and Guascor G-18SL
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 Guascor G-18SL has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.