Doosan GV158TI vs PSI 18L
The Doosan GV158TI and PSI 18L are both natural gas generator engines in a similar power class. Both are rated at roughly 346 kVA. Displacement is 14.6 L versus 18.3 L. The table below compares their full specifications side by side.
| Specification | Doosan GV158TI | PSI 18L |
|---|---|---|
| Headline rating | 353 kVA | 338 kVA |
| Standby (50 Hz) | — | 270 kWe |
| Prime (50 Hz) | 282 kWe | — |
| Standby (60 Hz) | — | 350 kWe |
| Prime (60 Hz) | — | — |
| Displacement | 14.6 L | 18.3 L |
| Configuration | V8 | V10 |
| Cylinders | 8 | 10 |
| Rated speed | 1,500 RPM | 1,500 / 1,800 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | U.S. EPA Stationary |
| Dry weight | — | — |
| Origin | South Korea | United States |
Choosing between Doosan GV158TI and PSI 18L
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 Doosan GV158TI has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.