Cummins QSL8.9-G33 vs Detroit Diesel 16V71
The Cummins QSL8.9-G33 and Detroit Diesel 16V71 are both diesel generator engines in a similar power class. Both are rated at roughly 362 kVA. Displacement is 8.9 L versus 18.6 L. The table below compares their full specifications side by side.
| Specification | Cummins QSL8.9-G33 | Detroit Diesel 16V71 |
|---|---|---|
| Headline rating | 360 kVA | 363 kVA |
| Standby (50 Hz) | 288 kWe | 290 kWe |
| Prime (50 Hz) | 230 kWe | 265 kWe |
| Standby (60 Hz) | — | 350 kWe |
| Prime (60 Hz) | — | 320 kWe |
| Displacement | 8.9 L | 18.6 L |
| Configuration | L6 | V16 |
| Cylinders | 6 | 16 |
| Rated speed | 1,500 RPM | 1,500 / 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | Unregulated |
| Dry weight | — | — |
| Origin | China | United States |
Choosing between Cummins QSL8.9-G33 and Detroit Diesel 16V71
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 16V71 has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.