SDEC 6ETAA12.8-G31 vs Yuchai YC6K600-D30
The SDEC 6ETAA12.8-G31 and Yuchai YC6K600-D30 are both diesel generator engines in a similar power class. Both are rated at roughly 496 kVA. Displacement is 12.8 L versus 12.94 L. The table below compares their full specifications side by side.
| Specification | SDEC 6ETAA12.8-G31 | Yuchai YC6K600-D30 |
|---|---|---|
| Headline rating | 496 kVA | 496 kVA |
| Standby (50 Hz) | 397 kWe | 397 kWe |
| Prime (50 Hz) | 361 kWe | 360 kWe |
| Standby (60 Hz) | — | — |
| Prime (60 Hz) | — | — |
| Displacement | 12.8 L | 12.94 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,500 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | China National Stage III / Unregulated | China National Stage III / Unregulated |
| Dry weight | — | — |
| Origin | China | China |
Choosing between SDEC 6ETAA12.8-G31 and Yuchai YC6K600-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.