Cummins L9CS4GT2 vs Lister Petter LP689G2
The Cummins L9CS4GT2 and Lister Petter LP689G2 are both diesel generator engines in a similar power class. Both are rated at roughly 248 kVA. Displacement is 9 L versus 8.9 L. The table below compares their full specifications side by side.
| Specification | Cummins L9CS4GT2 | Lister Petter LP689G2 |
|---|---|---|
| Headline rating | 248 kVA | 248 kVA |
| Standby (50 Hz) | 198 kWe | 198 kWe |
| Prime (50 Hz) | 180 kWe | 180 kWe |
| Standby (60 Hz) | — | 220 kWe |
| Prime (60 Hz) | — | 200 kWe |
| Displacement | 9 L | 8.9 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 | China IV | Euro Stage II |
| Dry weight | — | — |
| Origin | China | United Kingdom |
Choosing between Cummins L9CS4GT2 and Lister Petter LP689G2
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.