John Deere 4045TFG03 vs Perkins 1104C44G2
The John Deere 4045TFG03 and Perkins 1104C44G2 are both diesel generator engines in a similar power class. Both are rated at roughly 59 kVA. Displacement is 4.5 L versus 4.4 L. The table below compares their full specifications side by side.
| Specification | John Deere 4045TFG03 | Perkins 1104C44G2 |
|---|---|---|
| Headline rating | 58 kVA | 59 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | — | — |
| Standby (60 Hz) | 46 kWe | 47 kWe |
| Prime (60 Hz) | 41 kWe | 43 kWe |
| Displacement | 4.5 L | 4.4 L |
| Configuration | L4 | L4 |
| Cylinders | 4 | 4 |
| Rated speed | 1,800 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Final Tier 4 | U.S. EPA Tier 2 |
| Dry weight | — | — |
| Origin | United States | United Kingdom / Brazil |
Choosing between John Deere 4045TFG03 and Perkins 1104C44G2
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 Perkins 1104C44G2 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.