Cummins B5.9CS4GT3 vs John Deere 4045HFG04
The Cummins B5.9CS4GT3 and John Deere 4045HFG04 are both diesel generator engines in a similar power class. Both are rated at roughly 84 kVA. Displacement is 5.9 L versus 4.5 L. The table below compares their full specifications side by side.
| Specification | Cummins B5.9CS4GT3 | John Deere 4045HFG04 |
|---|---|---|
| Headline rating | 83 kVA | 84 kVA |
| Standby (50 Hz) | 66 kWe | 67 kWe |
| Prime (50 Hz) | 60 kWe | 61 kWe |
| Standby (60 Hz) | — | 67 kWe |
| Prime (60 Hz) | — | 60 kWe |
| Displacement | 5.9 L | 4.5 L |
| Configuration | L6 | L4 |
| Cylinders | 6 | 4 |
| Rated speed | 1,500 RPM | 1,500 / 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | China IV | U.S. EPA Final Tier 4 |
| Dry weight | — | — |
| Origin | China | United States |
Choosing between Cummins B5.9CS4GT3 and John Deere 4045HFG04
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 John Deere 4045HFG04 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.