Isuzu 6HK1X vs SDEC 6HTAA6.5-G23
The Isuzu 6HK1X and SDEC 6HTAA6.5-G23 are both diesel generator engines in a similar power class. Both are rated at roughly 209 kVA. Displacement is 7.79 L versus 6.5 L. The table below compares their full specifications side by side.
| Specification | Isuzu 6HK1X | SDEC 6HTAA6.5-G23 |
|---|---|---|
| Headline rating | 208 kVA | 209 kVA |
| Standby (50 Hz) | 166.3 kWe | 167 kWe |
| Prime (50 Hz) | 151.2 kWe | 151 kWe |
| Standby (60 Hz) | 196 kWe | 167 kWe |
| Prime (60 Hz) | 178.2 kWe | 151 kWe |
| Displacement | 7.79 L | 6.5 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 | China National Stage III / Unregulated |
| Dry weight | — | — |
| Origin | Japan | China |
Choosing between Isuzu 6HK1X and SDEC 6HTAA6.5-G23
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 SDEC 6HTAA6.5-G23 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.