Yuchai YC4V55Z-D21 vs Yunnei DEF20CFA4
The Yuchai YC4V55Z-D21 and Yunnei DEF20CFA4 are both diesel generator engines in a similar power class. Both are rated at roughly 41 kVA. Displacement is 2.49 L versus 2 L. The table below compares their full specifications side by side.
| Specification | Yuchai YC4V55Z-D21 | Yunnei DEF20CFA4 |
|---|---|---|
| Headline rating | 41 kVA | 41 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | — | 33 kWe |
| Standby (60 Hz) | 33 kWe | — |
| Prime (60 Hz) | 30 kWe | — |
| Displacement | 2.49 L | 2 L |
| Configuration | L4 | L4 |
| Cylinders | 4 | 4 |
| Rated speed | 1,800 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | China National Stage II / Unregulated | Euro Stage V |
| Dry weight | — | — |
| Origin | China | China |