Isuzu 4HK1X vs John Deere 4045HFG82
The Isuzu 4HK1X and John Deere 4045HFG82 are both diesel generator engines in a similar power class. Both are rated at roughly 135 kVA. Displacement is 5.193 L versus 4.5 L. The table below compares their full specifications side by side.
| Specification | Isuzu 4HK1X | John Deere 4045HFG82 |
|---|---|---|
| Headline rating | 134 kVA | 135 kVA |
| Standby (50 Hz) | 106.9 kWe | 108 kWe |
| Prime (50 Hz) | 97.2 kWe | 97 kWe |
| Standby (60 Hz) | 125.7 kWe | 110 kWe |
| Prime (60 Hz) | 114.3 kWe | 100 kWe |
| Displacement | 5.193 L | 4.5 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 | U.S. EPA Final Tier 4 | Euro Stage IIIA / U.S. EPA Tier 3 |
| Dry weight | — | — |
| Origin | Japan | United States |
Choosing between Isuzu 4HK1X and John Deere 4045HFG82
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 4045HFG82 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.