SDEC 4Z3.2-G11 vs Xinchai 3E22YD
The SDEC 4Z3.2-G11 and Xinchai 3E22YD are both diesel generator engines in a similar power class. Both are rated at roughly 40 kVA. Displacement is 3.2 L versus 2.2 L. The table below compares their full specifications side by side.
| Specification | SDEC 4Z3.2-G11 | Xinchai 3E22YD |
|---|---|---|
| Headline rating | 40 kVA | 40 kVA |
| Standby (50 Hz) | 32 kWe | 32 kWe |
| Prime (50 Hz) | 29 kWe | 29 kWe |
| Standby (60 Hz) | — | 36 kWe |
| Prime (60 Hz) | — | 32 kWe |
| Displacement | 3.2 L | 2.2 L |
| Configuration | L4 | L3 |
| Cylinders | 4 | 3 |
| Rated speed | 1,500 RPM | 1,500 / 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | China National Stage II / Unregulated | Unregulated |
| Dry weight | — | — |
| Origin | China | China |
Choosing between SDEC 4Z3.2-G11 and Xinchai 3E22YD
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.