Caterpillar CG132B-16 vs Generac SG1000
The Caterpillar CG132B-16 and Generac SG1000 are both natural gas generator engines in a similar power class. Both are rated at roughly 1,250 kVA. Displacement is 35.1 L versus 49.03 L. The table below compares their full specifications side by side.
| Specification | Caterpillar CG132B-16 | Generac SG1000 |
|---|---|---|
| Headline rating | 1,250 kVA | 1,250 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | 1,000 kWe | — |
| Standby (60 Hz) | — | 1,000 kWe |
| Prime (60 Hz) | 800 kWe | 909 kWe |
| Displacement | 35.1 L | 49.03 L |
| Configuration | V16 | V12 |
| Cylinders | 16 | 12 |
| Rated speed | 1,500 / 1,800 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 CG132B-16 and Generac SG1000
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.