Cummins C125N6 vs Generac SG130 (8.8L)
The Cummins C125N6 and Generac SG130 (8.8L) are both natural gas generator engines in a similar power class. Both are rated at roughly 160 kVA. Displacement is 8.9 L versus 8.8 L. The table below compares their full specifications side by side.
| Specification | Cummins C125N6 | Generac SG130 (8.8L) |
|---|---|---|
| Headline rating | 156 kVA | 163 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | — | — |
| Standby (60 Hz) | 125 kWe | 130 kWe |
| Prime (60 Hz) | — | — |
| Displacement | 8.9 L | 8.8 L |
| Configuration | L6 | V8 |
| Cylinders | 6 | 8 |
| Rated speed | 1,800 RPM | 1,800 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Stationary | U.S. EPA Stationary |
| Dry weight | — | — |
| Origin | United States | United States |
Choosing between Cummins C125N6 and Generac SG130 (8.8L)
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 SG130 (8.8L) has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.