Volvo Penta TWG1781GE vs Yuchai YC6TF800N-D30
The Volvo Penta TWG1781GE and Yuchai YC6TF800N-D30 are both natural gas generator engines in a similar power class. Both are rated at roughly 567 kVA. Displacement is 17.26 L versus 31.75 L. The table below compares their full specifications side by side.
| Specification | Volvo Penta TWG1781GE | Yuchai YC6TF800N-D30 |
|---|---|---|
| Headline rating | 570 kVA | 563 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | — | 450 kWe |
| Standby (60 Hz) | 456 kWe | — |
| Prime (60 Hz) | 414 kWe | — |
| Displacement | 17.26 L | 31.75 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| 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 | 1900 kg | — |
| Origin | Sweden | China |
Choosing between Volvo Penta TWG1781GE and Yuchai YC6TF800N-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 Volvo Penta TWG1781GE has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.