Cummins
Cummins QSX15
QSX15 Series
Cummins QSX15 14.948 L L6 diesel engine for generator and industrial constant-speed applications. EPA annual certification data lists up to 563 kW mechanical power at 1800 RPM. U.S. EPA Tier 3 / U.S. EPA Final Tier 4. Electrical ratings are stored only where an official Cummins generator-set rating card identifies the exact engine model.
- Electrical Output
- 563 kW
- Cylinders
- L6
- Displacement
- 14.948 L
- Rated Speed
- 1,500 RPM
Cummins QSX15 generator set context
The Cummins QSX15 is listed here as a diesel generator-drive engine for 50 Hz generator sets, with a headline 563 kW / standby rating. Use this page to compare the published engine output, electrical kWe/kVA ratings, emissions level, datasheet availability, and neighboring models before specifying an alternator, controller, enclosure, voltage, and compliance package.
Also searched as
Technical Specifications
| Brand | Cummins |
| Model | QSX15 |
| Series | QSX15 Series |
| Configuration | L6 |
| Cylinders | 6 |
| Displacement | 14.948 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Tier 3 / U.S. EPA Final Tier 4 |
| Certifications | U.S. EPA Tier 3, U.S. EPA Final Tier 4 |
| Country of Origin | United States |
Frequently asked questions
What fuel does the Cummins QSX15 use?
The Cummins QSX15 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the QSX15?
The Cummins QSX15 is an inline-6 (6-cylinder) engine with a displacement of 14.948 L.
What emissions standard does the QSX15 meet?
The Cummins QSX15 is certified to U.S. EPA Tier 3 / U.S. EPA Final Tier 4 emissions standards.
Is the Cummins QSX15 still in production?
Yes — the Cummins QSX15 is a current production model.
Is a datasheet available for the QSX15?
Yes — an official Cummins datasheet for the Cummins QSX15 can be downloaded from this page.
Reference
- Canonical page
- /engines/cummins-qsx15
- Last database update
- 2026-07-24
- Manufacturer files
- 1 datasheet linked
Need this engine?
Need a generator package using this engine? Haifeng Machinery can help with sizing, alternator selection, controller, enclosure, voltage, and compliance support.
Get a Quote ↗Or browse Haifeng's diesel generator sets ↗