Cummins QSK23G6 vs Perkins 2806C-E18TTAG7
The Cummins QSK23G6 and Perkins 2806C-E18TTAG7 are both diesel generator engines in a similar power class. Both are rated at roughly 938 kVA. Displacement is 23 L versus 18 L. The table below compares their full specifications side by side.
| Specification | Cummins QSK23G6 | Perkins 2806C-E18TTAG7 |
|---|---|---|
| Headline rating | 938 kVA | 938 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | — | — |
| Standby (60 Hz) | 750 kWe | 750 kWe |
| Prime (60 Hz) | 682 kWe | 680 kWe |
| Displacement | 23 L | 18 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Rated speed | 1,800 RPM | 1,800 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | U.S. EPA Tier 2 | Euro Stage II / U.S. EPA Tier 2 |
| Dry weight | — | — |
| Origin | India | United Kingdom |
Choosing between Cummins QSK23G6 and Perkins 2806C-E18TTAG7
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.