Generac SG275 vs Guascor G-18FL
The Generac SG275 and Guascor G-18FL are both natural gas generator engines in a similar power class. Both are rated at roughly 337 kVA. Displacement is 14.2 L versus 18 L. The table below compares their full specifications side by side.
| Specification | Generac SG275 | Guascor G-18FL |
|---|---|---|
| Headline rating | 344 kVA | 330 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | — | 264 kWe |
| Standby (60 Hz) | 275 kWe | — |
| Prime (60 Hz) | 248 kWe | 287 kWe |
| Displacement | 14.2 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 Generac SG275 and Guascor G-18FL
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 Generac SG275 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.