Detroit Diesel 16V149 vs SDEC 6KTAA25-G320
The Detroit Diesel 16V149 and SDEC 6KTAA25-G320 are both diesel generator engines in a similar power class. Both are rated at roughly 1,027 kVA. Displacement is 39.1 L versus 25 L. The table below compares their full specifications side by side.
| Specification | Detroit Diesel 16V149 | SDEC 6KTAA25-G320 |
|---|---|---|
| Headline rating | 1,038 kVA | 1,015 kVA |
| Standby (50 Hz) | 830 kWe | 812 kWe |
| Prime (50 Hz) | 750 kWe | 738 kWe |
| Standby (60 Hz) | 1,000 kWe | — |
| Prime (60 Hz) | 910 kWe | — |
| Displacement | 39.1 L | 25 L |
| Configuration | V16 | L6 |
| Cylinders | 16 | 6 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | China National Stage III / Unregulated |
| Dry weight | — | — |
| Origin | United States | China |
Choosing between Detroit Diesel 16V149 and SDEC 6KTAA25-G320
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 Detroit Diesel 16V149 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.