Cummins 4BTAA3.3G14 vs Perkins 1103A-33TG2
The Cummins 4BTAA3.3G14 and Perkins 1103A-33TG2 are both diesel generator engines in a similar power class. Both are rated at roughly 66 kVA. The table below compares their full specifications side by side.
| Specification | Cummins 4BTAA3.3G14 | 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) | — | 60 kWe |
| Prime (60 Hz) | — | 55 kWe |
| Displacement | 3.3 L | 3.3 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 | EU Stage IIIA | Unregulated |
| Dry weight | — | — |
| Origin | India | United Kingdom |
Choosing between Cummins 4BTAA3.3G14 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.