Cummins GGMC GM 3.0L vs Generac RG03224
The Cummins GGMC GM 3.0L and Generac RG03224 are both natural gas generator engines in a similar power class. The Generac RG03224 is the higher-output unit (40 kVA vs 36 kVA). Displacement is 2.97 L versus 2.4 L. The table below compares their full specifications side by side.
| Specification | Cummins GGMC GM 3.0L | Generac RG03224 |
|---|---|---|
| Headline rating | 36 kVA | 40 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | — | — |
| Standby (60 Hz) | 29 kWe | 32 kWe |
| Prime (60 Hz) | 26 kWe | — |
| Displacement | 2.97 L | 2.4 L |
| Configuration | L4 | L4 |
| Cylinders | 4 | 4 |
| Rated speed | 1,800 RPM | 1,800 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Stationary | U.S. EPA Stationary |
| Dry weight | — | — |
| Origin | United States | United States |
Choosing between Cummins GGMC GM 3.0L and Generac RG03224
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 Generac RG03224 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.