John Deere 4045CG440 vs Yunnei DEF47CDB3
The John Deere 4045CG440 and Yunnei DEF47CDB3 are both diesel generator engines in a similar power class. Both are rated at roughly 123 kVA. Displacement is 4.5 L versus 4.7 L. The table below compares their full specifications side by side.
| Specification | John Deere 4045CG440 | Yunnei DEF47CDB3 |
|---|---|---|
| Headline rating | 121 kVA | 124 kVA |
| Standby (50 Hz) | 97 kWe | — |
| Prime (50 Hz) | 87 kWe | — |
| Standby (60 Hz) | 111 kWe | — |
| Prime (60 Hz) | 101 kWe | 99 kWe |
| Displacement | 4.5 L | 4.7 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 Final Tier 4 | Euro Stage IIIA |
| Dry weight | — | — |
| Origin | United States | China |
Choosing between John Deere 4045CG440 and Yunnei DEF47CDB3
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 Yunnei DEF47CDB3 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.