Cummins K19N-G1 vs Waukesha VGF F18GSI
The Cummins K19N-G1 and Waukesha VGF F18GSI are both natural gas generator engines in a similar power class. Both are rated at roughly 382 kVA. Displacement is 18.9 L versus 18 L. The table below compares their full specifications side by side.
| Specification | Cummins K19N-G1 | Waukesha VGF F18GSI |
|---|---|---|
| Headline rating | 375 kVA | 388 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | 300 kWe | — |
| Standby (60 Hz) | — | — |
| Prime (60 Hz) | 300 kWe | 310 kWe |
| Displacement | 18.9 L | 18 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,500 / 1,800 RPM | 1,800 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | Unregulated |
| Dry weight | — | — |
| Origin | China | United States |
Choosing between Cummins K19N-G1 and Waukesha VGF F18GSI
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 Waukesha VGF F18GSI has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.