John Deere 6090HFG84 vs Perkins 1506AE88TAG5
The John Deere 6090HFG84 and Perkins 1506AE88TAG5 are both diesel generator engines in a similar power class. Both are rated at roughly 337 kVA. Displacement is 9 L versus 8.8 L. The table below compares their full specifications side by side.
| Specification | John Deere 6090HFG84 | Perkins 1506AE88TAG5 |
|---|---|---|
| Headline rating | 336 kVA | 338 kVA |
| Standby (50 Hz) | 269 kWe | 270 kWe |
| Prime (50 Hz) | 243 kWe | 246 kWe |
| Standby (60 Hz) | 278 kWe | 312 kWe |
| Prime (60 Hz) | 252 kWe | 282 kWe |
| Displacement | 9 L | 8.8 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 / 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Euro Stage IIIA / U.S. EPA Tier 3 | Unregulated |
| Dry weight | — | — |
| Origin | United States | United States |
Choosing between John Deere 6090HFG84 and Perkins 1506AE88TAG5
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 Perkins 1506AE88TAG5 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.