Cummins 6BTAA5.9-G6 vs Lister Petter LP665G1
Compare Cummins 6BTAA5.9-G6 and Lister Petter LP665G1 by recorded output, operating duty, frequency and engine specifications. Their listed displacements are 5.9 L and 6.5 L, respectively. Start with the same duty and frequency, then check each model’s source and package conditions. These records alone do not establish interchangeability.
| Specification | Cummins 6BTAA5.9-G6 | Lister Petter LP665G1 |
|---|---|---|
| Standby electrical (50 Hz) | 120 kWe | 120 kWe |
| Prime electrical (50 Hz) | 113 kWe | 110 kWe |
| Standby electrical (60 Hz) | 135 kWe | 132 kWe |
| Prime electrical (60 Hz) | 127 kWe | 120 kWe |
| Other recorded mechanical power (duty unspecified) | 135 kW | 135 kW |
| Displacement | 5.9 L | 6.5 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Recorded engine speed | 1,500 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Recorded emissions classification | Non-Regulated | Euro Stage II |
| Dry weight | Not listed | Not listed |
| Origin | Not listed | United Kingdom |
Compare matching ratings
Read across a row to compare the same operating duty and frequency. kWe is electrical output; mechanical kW is power at the engine shaft. kVA is apparent electrical power and is shown only when kWe is missing, without converting it. “Not listed” means the record lacks that rating, not zero output. Continuous and prime duties are kept separate. Check source documents, units and site conditions before comparing values.
An emissions classification in the catalog is not proof of certification for your engine or installation. Confirm the exact model, applicable documents and generator configuration.
Cummins 6BTAA5.9-G6: Review the model record and available supporting documents
Lister Petter LP665G1: Review the model record and available supporting documents
Choosing between Cummins 6BTAA5.9-G6 and Lister Petter LP665G1
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.