Generac SG080 (9.0L) vs Yuchai YC4G135N-D30
The Generac SG080 (9.0L) and Yuchai YC4G135N-D30 are both natural gas generator engines in a similar power class. Both are rated at roughly 100 kVA. Displacement is 8.9 L versus 5.2 L. The table below compares their full specifications side by side.
| Specification | Generac SG080 (9.0L) | Yuchai YC4G135N-D30 |
|---|---|---|
| Headline rating | 100 kVA | 100 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | — | 80 kWe |
| Standby (60 Hz) | 80 kWe | — |
| Prime (60 Hz) | — | — |
| Displacement | 8.9 L | 5.2 L |
| Configuration | V8 | L4 |
| Cylinders | 8 | 4 |
| Rated speed | 1,800 RPM | 1,500 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Stationary | Unregulated |
| Dry weight | — | — |
| Origin | United States | China |
Choosing between Generac SG080 (9.0L) and Yuchai YC4G135N-D30
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.