Cummins QSB6.7-G31 vs John Deere 6090HFG84
Compare Cummins QSB6.7-G31 and John Deere 6090HFG84 by recorded output, operating duty, frequency and engine specifications. Their listed displacements are 6.7 L and 9 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 QSB6.7-G31 | John Deere 6090HFG84 |
|---|---|---|
| Standby electrical (50 Hz) | 225 kWe | 224 kWe |
| Prime electrical (50 Hz) | 180 kWe | 202 kWe |
| Standby electrical (60 Hz) | Not listed | 228 kWe |
| Prime electrical (60 Hz) | Not listed | 206 kWe |
| Displacement | 6.7 L | 9 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 | Unregulated | Euro Stage IIIA / U.S. EPA Tier 3 |
| Dry weight | Not listed | Not listed |
| Origin | China | United States |
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 QSB6.7-G31: Review the model record and available supporting documents
John Deere 6090HFG84: Review the model record and available supporting documents
Choosing between Cummins QSB6.7-G31 and John Deere 6090HFG84
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.