Caterpillar C3.3 vs FAWDE 4DX23
The Caterpillar C3.3 and FAWDE 4DX23 are both diesel generator engines in a similar power class. Both are rated at roughly 66 kVA. Displacement is 3.3 L versus 3.9 L. The table below compares their full specifications side by side.
| Specification | Caterpillar C3.3 | FAWDE 4DX23 |
|---|---|---|
| Headline rating | 65 kVA | 66 kVA |
| Standby (50 Hz) | 52 kWe | 53 kWe |
| Prime (50 Hz) | 48 kWe | 48 kWe |
| Standby (60 Hz) | 60 kWe | 61 kWe |
| Prime (60 Hz) | 55 kWe | 55 kWe |
| Displacement | 3.3 L | 3.9 L |
| Configuration | L4 | L4 |
| Cylinders | 4 | 4 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 / 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | Unregulated |
| Dry weight | — | — |
| Origin | United States | China |
Choosing between Caterpillar C3.3 and FAWDE 4DX23
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 FAWDE 4DX23 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.