Hyundai DP222CAS vs Weichai 6M31D740E310
The Hyundai DP222CAS and Weichai 6M31D740E310 are both diesel generator engines in a similar power class. Both are rated at roughly 834 kVA. Displacement is 21.9 L versus 18.6 L. The table below compares their full specifications side by side.
| Specification | Hyundai DP222CAS | Weichai 6M31D740E310 |
|---|---|---|
| Headline rating | 834 kVA | 833 kVA |
| Standby (50 Hz) | 667 kWe | 666 kWe |
| Prime (50 Hz) | 607 kWe | 612 kWe |
| Standby (60 Hz) | 755 kWe | 666 kWe |
| Prime (60 Hz) | 685 kWe | 612 kWe |
| Displacement | 21.9 L | 18.6 L |
| Configuration | L6 | V6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 / 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Tier 3 | China National Stage III / Unregulated |
| Dry weight | — | — |
| Origin | South Korea | China |
Choosing between Hyundai DP222CAS and Weichai 6M31D740E310
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 Hyundai DP222CAS has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.