SDEC 4Z2.7-G21 vs Yuchai YCDA2540-D40
The SDEC 4Z2.7-G21 and Yuchai YCDA2540-D40 are both diesel generator engines in a similar power class. Both are rated at roughly 28 kVA. Displacement is 2.7 L versus 2.488 L. The table below compares their full specifications side by side.
| Specification | SDEC 4Z2.7-G21 | Yuchai YCDA2540-D40 |
|---|---|---|
| Headline rating | 28 kVA | 28 kVA |
| Standby (50 Hz) | 22 kWe | 22 kWe |
| Prime (50 Hz) | 20 kWe | 20 kWe |
| Standby (60 Hz) | 26 kWe | — |
| Prime (60 Hz) | 23 kWe | — |
| Displacement | 2.7 L | 2.488 L |
| Configuration | L4 | L4 |
| Cylinders | 4 | 4 |
| 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 IV / Unregulated |
| Dry weight | — | — |
| Origin | China | China |