Hatz 3M41 vs SDEC 4Z2.3-G12
The Hatz 3M41 and SDEC 4Z2.3-G12 are both diesel generator engines in a similar power class. The Hatz 3M41 is the higher-output unit (28 kVA vs 26 kVA). Displacement is 2.5 L versus 2.3 L. The table below compares their full specifications side by side.
| Specification | Hatz 3M41 | SDEC 4Z2.3-G12 |
|---|---|---|
| Headline rating | 28 kVA | 26 kVA |
| Standby (50 Hz) | 22 kWe | 21 kWe |
| Prime (50 Hz) | 20 kWe | 19 kWe |
| Standby (60 Hz) | 28 kWe | 21 kWe |
| Prime (60 Hz) | 25 kWe | 19 kWe |
| Displacement | 2.5 L | 2.3 L |
| Configuration | L3 | L4 |
| Cylinders | 3 | 4 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 / 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Air-Cooled | Liquid-Cooled |
| Emissions | Euro Stage IIIA | China National Stage II / Unregulated |
| Dry weight | — | — |
| Origin | Germany | China |
Choosing between Hatz 3M41 and SDEC 4Z2.3-G12
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 Hatz 3M41 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.