Weichai 12M26D792E200 vs Yuchai YC6C1070-D31
The Weichai 12M26D792E200 and Yuchai YC6C1070-D31 are both diesel generator engines in a similar power class. Both are rated at roughly 890 kVA. Displacement is 31.2 L versus 39.584 L. The table below compares their full specifications side by side.
| Specification | Weichai 12M26D792E200 | Yuchai YC6C1070-D31 |
|---|---|---|
| Headline rating | 891 kVA | 888 kVA |
| Standby (50 Hz) | 713 kWe | 710 kWe |
| Prime (50 Hz) | 648 kWe | 650 kWe |
| Standby (60 Hz) | 812 kWe | — |
| Prime (60 Hz) | 738 kWe | — |
| Displacement | 31.2 L | 39.584 L |
| Configuration | V12 | L6 |
| Cylinders | 12 | 6 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | China National Stage II / Unregulated | China National Stage III / Unregulated |
| Dry weight | — | — |
| Origin | China | China |
Choosing between Weichai 12M26D792E200 and Yuchai YC6C1070-D31
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 Weichai 12M26D792E200 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.