Caterpillar 3412 vs Cummins KT38-GA
The Caterpillar 3412 and Cummins KT38-GA are both diesel generator engines in a similar power class. Both are rated at roughly 800 kVA. Displacement is 27 L versus 38 L. The table below compares their full specifications side by side.
| Specification | Caterpillar 3412 | Cummins KT38-GA |
|---|---|---|
| Headline rating | 800 kVA | 800 kVA |
| Standby (50 Hz) | 640 kWe | 640 kWe |
| Prime (50 Hz) | 580 kWe | 580 kWe |
| Standby (60 Hz) | 800 kWe | — |
| Prime (60 Hz) | 727 kWe | — |
| Displacement | 27 L | 38 L |
| Configuration | V12 | V12 |
| Cylinders | 12 | 12 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Tier 2 | Unregulated |
| Dry weight | — | — |
| Origin | United States | China |
Choosing between Caterpillar 3412 and Cummins KT38-GA
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.