Detroit Diesel 16V149 vs PSI 26L-D
The Detroit Diesel 16V149 and PSI 26L-D are both diesel generator engines in a similar power class. Both are rated at roughly 1,044 kVA. Displacement is 39.1 L versus 26.1 L. The table below compares their full specifications side by side.
| Specification | Detroit Diesel 16V149 | PSI 26L-D |
|---|---|---|
| Headline rating | 1,038 kVA | 1,050 kVA |
| Standby (50 Hz) | 830 kWe | — |
| Prime (50 Hz) | 750 kWe | — |
| Standby (60 Hz) | 1,000 kWe | 840 kWe |
| Prime (60 Hz) | 910 kWe | — |
| Displacement | 39.1 L | 26.1 L |
| Configuration | V16 | V8 |
| Cylinders | 16 | 8 |
| Rated speed | 1,500 / 1,800 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | U.S. EPA Tier 3 |
| Dry weight | — | — |
| Origin | United States | United States |
Choosing between Detroit Diesel 16V149 and PSI 26L-D
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 PSI 26L-D has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.