Cummins C125N6 vs Kohler KG6208THD
The Cummins C125N6 and Kohler KG6208THD are both natural gas generator engines in a similar power class. Both are rated at roughly 156 kVA. Displacement is 8.9 L versus 6.2 L. The table below compares their full specifications side by side.
| Specification | Cummins C125N6 | Kohler KG6208THD |
|---|---|---|
| Headline rating | 156 kVA | 156 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | — | — |
| Standby (60 Hz) | 125 kWe | 125 kWe |
| Prime (60 Hz) | — | — |
| Displacement | 8.9 L | 6.2 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 Kohler KG6208THD
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.