Caterpillar C4.4 vs John Deere 4045TFG03
The Caterpillar C4.4 and John Deere 4045TFG03 are both diesel generator engines in a similar power class. Both are rated at roughly 57 kVA. Displacement is 4.4 L versus 4.5 L. The table below compares their full specifications side by side.
| Specification | Caterpillar C4.4 | John Deere 4045TFG03 |
|---|---|---|
| Headline rating | 56 kVA | 58 kVA |
| Standby (50 Hz) | 45 kWe | — |
| Prime (50 Hz) | 40 kWe | — |
| Standby (60 Hz) | 50 kWe | 46 kWe |
| Prime (60 Hz) | 45 kWe | 41 kWe |
| Displacement | 4.4 L | 4.5 L |
| Configuration | L4 | L4 |
| Cylinders | 4 | 4 |
| Rated speed | 1,500 / 1,800 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Tier 3 | U.S. EPA Final Tier 4 |
| Dry weight | — | — |
| Origin | United States | United States |