Hatz 2M41 vs Lister Petter SA423G1
The Hatz 2M41 and Lister Petter SA423G1 are both diesel generator engines in a similar power class. Both are rated at roughly 18 kVA. Displacement is 1.6 L versus 2.3 L. The table below compares their full specifications side by side.
| Specification | Hatz 2M41 | Lister Petter SA423G1 |
|---|---|---|
| Headline rating | 18 kVA | 18 kVA |
| Standby (50 Hz) | 14 kWe | 14 kWe |
| Prime (50 Hz) | 12.7 kWe | 13 kWe |
| Standby (60 Hz) | 17.5 kWe | 17.6 kWe |
| Prime (60 Hz) | 15.7 kWe | 16 kWe |
| Displacement | 1.6 L | 2.3 L |
| Configuration | L2 | L4 |
| Cylinders | 2 | 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 | Euro Stage II |
| Dry weight | — | — |
| Origin | Germany | United Kingdom |
Choosing between Hatz 2M41 and Lister Petter SA423G1
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.