Deutz F6L912 vs John Deere 4045TF290
The Deutz F6L912 and John Deere 4045TF290 are both diesel generator engines in a similar power class. Both are rated at roughly 59 kVA. Displacement is 5.655 L versus 4.5 L. The table below compares their full specifications side by side.
| Specification | Deutz F6L912 | John Deere 4045TF290 |
|---|---|---|
| Headline rating | 58 kVA | 59 kVA |
| Standby (50 Hz) | 46.8 kWe | — |
| Prime (50 Hz) | 43.2 kWe | — |
| Standby (60 Hz) | 55.8 kWe | 47 kWe |
| Prime (60 Hz) | 49.5 kWe | 42 kWe |
| Displacement | 5.655 L | 4.5 L |
| Configuration | L6 | L4 |
| Cylinders | 6 | 4 |
| Rated speed | 1,500 / 1,800 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Air-Cooled | Liquid-Cooled |
| Emissions | Unregulated | U.S. EPA Tier 3 |
| Dry weight | — | — |
| Origin | Germany | United States |
Choosing between Deutz F6L912 and John Deere 4045TF290
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 4045TF290 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.