Cummins QSK19-G6 vs Perkins 2806C-E18TAG1A
The Cummins QSK19-G6 and Perkins 2806C-E18TAG1A are both diesel generator engines in a similar power class. Both are rated at roughly 650 kVA. Displacement is 19 L versus 18 L. The table below compares their full specifications side by side.
| Specification | Cummins QSK19-G6 | Perkins 2806C-E18TAG1A |
|---|---|---|
| Headline rating | 650 kVA | 650 kVA |
| Standby (50 Hz) | 520 kWe | 520 kWe |
| Prime (50 Hz) | 470 kWe | 473 kWe |
| Standby (60 Hz) | — | 550 kWe |
| Prime (60 Hz) | — | 500 kWe |
| Displacement | 19 L | 18 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| 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 Kingdom |
Choosing between Cummins QSK19-G6 and Perkins 2806C-E18TAG1A
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.