John Deere 6068HFG82 vs SDEC 6DTAA8.9-G21
The John Deere 6068HFG82 and SDEC 6DTAA8.9-G21 are both diesel generator engines in a similar power class. Both are rated at roughly 231 kVA. Displacement is 6.8 L versus 8.9 L. The table below compares their full specifications side by side.
| Specification | John Deere 6068HFG82 | SDEC 6DTAA8.9-G21 |
|---|---|---|
| Headline rating | 231 kVA | 230 kVA |
| Standby (50 Hz) | — | 184 kWe |
| Prime (50 Hz) | — | 167 kWe |
| Standby (60 Hz) | 185 kWe | 203 kWe |
| Prime (60 Hz) | 168 kWe | 185 kWe |
| Displacement | 6.8 L | 8.9 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,800 RPM | 1,500 / 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Tier 3 | China National Stage III / Unregulated |
| Dry weight | — | — |
| Origin | United States | China |
Choosing between John Deere 6068HFG82 and SDEC 6DTAA8.9-G21
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 6068HFG82 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.