Cummins GTA855E vs Jichai JC15Z1
The Cummins GTA855E and Jichai JC15Z1 are both natural gas generator engines in a similar power class. Both are rated at roughly 310 kVA. Displacement is 14 L versus 15.2 L. The table below compares their full specifications side by side.
| Specification | Cummins GTA855E | Jichai JC15Z1 |
|---|---|---|
| Headline rating | 306 kVA | 313 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | — | 250 kWe |
| Standby (60 Hz) | 245 kWe | — |
| Prime (60 Hz) | 225 kWe | — |
| Displacement | 14 L | 15.2 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,800 RPM | 1,500 RPM |
| Fuel | Natural Gas | Biogas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Stationary | China III (GB20891) |
| Dry weight | — | — |
| Origin | United States | China |
Choosing between Cummins GTA855E and Jichai JC15Z1
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 Jichai JC15Z1 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.