Cummins L9G17 vs SDEC SC9D340D2
The Cummins L9G17 and SDEC SC9D340D2 are both diesel generator engines in a similar power class. Both are rated at roughly 286 kVA. Displacement is 8.8 L versus 9 L. The table below compares their full specifications side by side.
| Specification | Cummins L9G17 | SDEC SC9D340D2 |
|---|---|---|
| Headline rating | 284 kVA | 288 kVA |
| Standby (50 Hz) | 227 kWe | 230 kWe |
| Prime (50 Hz) | 207 kWe | 205 kWe |
| Standby (60 Hz) | 232 kWe | — |
| Prime (60 Hz) | 212 kWe | — |
| Displacement | 8.8 L | 9 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,500 / 1,800 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Final Tier 4 / EU Stage V | China National Stage II / Unregulated |
| Dry weight | — | — |
| Origin | United States | China |
Choosing between Cummins L9G17 and SDEC SC9D340D2
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 SC9D340D2 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.