Lister Petter SA441G1 vs Perkins 1103A-33TG2
The Lister Petter SA441G1 and Perkins 1103A-33TG2 are both diesel generator engines in a similar power class. Both are rated at roughly 66 kVA. Displacement is 4.1 L versus 3.3 L. The table below compares their full specifications side by side.
| Specification | Lister Petter SA441G1 | Perkins 1103A-33TG2 |
|---|---|---|
| Headline rating | 66 kVA | 66 kVA |
| Standby (50 Hz) | 53 kWe | 53 kWe |
| Prime (50 Hz) | 48 kWe | 48 kWe |
| Standby (60 Hz) | 66 kWe | 60 kWe |
| Prime (60 Hz) | 60 kWe | 55 kWe |
| Displacement | 4.1 L | 3.3 L |
| Configuration | L4 | L3 |
| Cylinders | 4 | 3 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 / 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Euro Stage II | Unregulated |
| Dry weight | — | — |
| Origin | United Kingdom | United Kingdom |
Choosing between Lister Petter SA441G1 and Perkins 1103A-33TG2
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.