Generac SG500 vs Weichai 12M26D605E300NG
The Generac SG500 and Weichai 12M26D605E300NG are both natural gas generator engines in a similar power class. Both are rated at roughly 625 kVA. Displacement is 25.8 L versus 31.2 L. The table below compares their full specifications side by side.
| Specification | Generac SG500 | Weichai 12M26D605E300NG |
|---|---|---|
| Headline rating | 625 kVA | 625 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | — | 500 kWe |
| Standby (60 Hz) | 500 kWe | — |
| Prime (60 Hz) | 455 kWe | — |
| Displacement | 25.8 L | 31.2 L |
| Configuration | V12 | V12 |
| Cylinders | 12 | 12 |
| Rated speed | 1,800 RPM | 1,500 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | Unregulated |
| Dry weight | — | — |
| Origin | United States | China |