Caterpillar CG170B-12 vs Cummins C1400N6C
The Caterpillar CG170B-12 and Cummins C1400N6C are both natural gas generator engines in a similar power class. Both are rated at roughly 1,738 kVA. Displacement is 53.1 L versus 60.2 L. The table below compares their full specifications side by side.
| Specification | Caterpillar CG170B-12 | Cummins C1400N6C |
|---|---|---|
| Headline rating | 1,725 kVA | 1,750 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | 1,380 kWe | — |
| Standby (60 Hz) | — | — |
| Prime (60 Hz) | — | 1,400 kWe |
| Displacement | 53.1 L | 60.2 L |
| Configuration | V12 | V16 |
| Cylinders | 12 | 16 |
| Rated speed | 1,500 RPM | 1,800 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | U.S. EPA Stationary |
| Dry weight | — | — |
| Origin | Germany | United States |
Choosing between Caterpillar CG170B-12 and Cummins C1400N6C
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 Cummins C1400N6C has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.