Generac QT025A vs Xinchai 4D27LPG
The Generac QT025A and Xinchai 4D27LPG are both natural gas generator engines in a similar power class. Both are rated at roughly 31 kVA. Displacement is 2.4 L versus 2.7 L. The table below compares their full specifications side by side.
| Specification | Generac QT025A | Xinchai 4D27LPG |
|---|---|---|
| Headline rating | 31 kVA | 30 kVA |
| Standby (50 Hz) | — | 24 kWe |
| Prime (50 Hz) | — | 23 kWe |
| Standby (60 Hz) | 25 kWe | — |
| Prime (60 Hz) | — | — |
| Displacement | 2.4 L | 2.7 L |
| Configuration | L4 | L4 |
| Cylinders | 4 | 4 |
| Rated speed | 1,800 RPM | 1,500 RPM |
| Fuel | Natural Gas | LPG |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Stationary | Unregulated |
| Dry weight | — | — |
| Origin | United States | China |
Choosing between Generac QT025A and Xinchai 4D27LPG
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 Generac QT025A has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.