Cummins QSX15G17 vs Perkins 2806J-E18TAG1
Compare Cummins QSX15G17 and Perkins 2806J-E18TAG1 by recorded output, operating duty, frequency and engine specifications. Their listed displacements are 15 L and 18 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 QSX15G17 | Perkins 2806J-E18TAG1 |
|---|---|---|
| Standby electrical (50 Hz) | Not listed | 488 kWe |
| Prime electrical (50 Hz) | Not listed | 444 kWe |
| Standby electrical (60 Hz) | 500 kWe | Not listed |
| Prime electrical (60 Hz) | 455 kWe | Not listed |
| Other recorded mechanical power (duty unspecified) | 563 kW | Not listed |
| Displacement | 15 L | 18 L |
| Configuration | L6 | L6 |
| Cylinders | 6 | 6 |
| Recorded engine speed | 1,800 RPM | 1,500 RPM |
| Fuel | Diesel | Diesel |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Recorded emissions classification | U.S. EPA Final Tier 4 | Euro Stage V / U.S. EPA Final Tier 4 |
| Dry weight | Not listed | Not listed |
| Origin | United States | 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 QSX15G17: Review the model record and available supporting documents
Perkins 2806J-E18TAG1: Review the model record and available supporting documents
Choosing between Cummins QSX15G17 and Perkins 2806J-E18TAG1
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.