John Deere 4045HG551 vs Volvo Penta TAD551GE
The John Deere 4045HG551 and Volvo Penta TAD551GE are both diesel generator engines in a similar power class. Both are rated at roughly 114 kVA. Displacement is 4.5 L versus 5.1 L. The table below compares their full specifications side by side.
| Specification | John Deere 4045HG551 | Volvo Penta TAD551GE |
|---|---|---|
| Headline rating | 113 kVA | 114 kVA |
| Standby (50 Hz) | 90 kWe | 91 kWe |
| Prime (50 Hz) | 81 kWe | 81 kWe |
| Standby (60 Hz) | 93 kWe | 101 kWe |
| Prime (60 Hz) | 84 kWe | 90 kWe |
| Displacement | 4.5 L | 5.1 L |
| Configuration | L4 | L4 |
| Cylinders | 4 | 4 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 / 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Euro Stage V / U.S. EPA Final Tier 4 | EU Stage IIIA / EPA Tier 3 |
| Dry weight | — | — |
| Origin | United States | Sweden |
Choosing between John Deere 4045HG551 and Volvo Penta TAD551GE
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 Volvo Penta TAD551GE has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.