Ford WSG873-T vs PSI 8.1L T
The Ford WSG873-T and PSI 8.1L T are both natural gas generator engines in a similar power class. The PSI 8.1L T is the higher-output unit (156 kVA vs 146 kVA). Displacement is 7.3 L versus 8.06 L. The table below compares their full specifications side by side.
| Specification | Ford WSG873-T | PSI 8.1L T |
|---|---|---|
| Headline rating | 146 kVA | 156 kVA |
| Standby (50 Hz) | — | 125 kWe |
| Prime (50 Hz) | — | 110 kWe |
| Standby (60 Hz) | — | 155 kWe |
| Prime (60 Hz) | 117 kWe | 125 kWe |
| Displacement | 7.3 L | 8.06 L |
| Configuration | V8 | L6 |
| Cylinders | 8 | 6 |
| Rated speed | 1,800 RPM | 1,500 / 1,800 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Stationary | U.S. EPA Stationary |
| Dry weight | 263.1 kg | 998 kg |
| Origin | United States | United States |
Choosing between Ford WSG873-T and PSI 8.1L T
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 PSI 8.1L T has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.