Caterpillar G3612 vs Jenbacher J616
The Caterpillar G3612 and Jenbacher J616 are both natural gas generator engines in a similar power class. Both are rated at roughly 3,308 kVA. Displacement is 221.6 L versus 99.8 L. The table below compares their full specifications side by side.
| Specification | Caterpillar G3612 | Jenbacher J616 |
|---|---|---|
| Headline rating | 3,269 kVA | 3,346 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | 2,615 kWe | 2,677 kWe |
| Standby (60 Hz) | — | — |
| Prime (60 Hz) | — | 2,662 kWe |
| Displacement | 221.6 L | 99.8 L |
| Configuration | V12 | V16 |
| Cylinders | 12 | 16 |
| Rated speed | 1,000 RPM | 1,500 / 1,500 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Stationary | Unregulated |
| Dry weight | — | — |
| Origin | United States | Austria |
Choosing between Caterpillar G3612 and Jenbacher J616
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 Jenbacher J616 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.