Ford WSG873 vs Yuchai YC4G135N-D30
The Ford WSG873 and Yuchai YC4G135N-D30 are both natural gas generator engines in a similar power class. Both are rated at roughly 101 kVA. Displacement is 7.3 L versus 5.2 L. The table below compares their full specifications side by side.
| Specification | Ford WSG873 | Yuchai YC4G135N-D30 |
|---|---|---|
| Headline rating | 101 kVA | 100 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | — | 80 kWe |
| Standby (60 Hz) | — | — |
| Prime (60 Hz) | 81 kWe | — |
| Displacement | 7.3 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 | 263.1 kg | — |
| Origin | United States | China |
Choosing between Ford WSG873 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. The Ford WSG873 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.