Cummins
Cummins QSX15G4
Cummins QSX15G4 generator-drive diesel engine discovered in the GenProBase public selector. GenProBase lists 2 row(s) across 50Hz, 60Hz with 15 L displacement, 6L cylinders, liquid-cooled cooling, and U.S. EPA Tier 2 / EU Stage II emissions labeling. Treat this row as source-discovered and prioritize OEM datasheet attachment in a follow-up pass.
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- Manufacturer files
- No datasheet
- Last updated
- 2026-08-05
- Package route
- diesel generator sets
- Standby Power · 50 Hz
- 450 kVA
- Electrical Output
- 360 kWe
- Cylinders
- L6
- Displacement
- 15 L
- Rated Speed
- 1,500 / 1,800 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
50 Hz1500 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 366 | 327 | — |
| Standby Power | 407 | 360 | — |
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 414 | 355 | — |
| Standby Power | 455 | 400 | — |
Cummins QSX15G4 generator set context
The Cummins QSX15G4 is listed here as a diesel generator-drive engine for 50 Hz and 60 Hz generator sets, with a headline 450 kVA / 360 kWe / 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.
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Technical Specifications
| Brand | Cummins |
| Model | QSX15G4 |
| Configuration | L6, turbocharged aftercooled |
| Cylinders | 6 |
| Displacement | 15 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Tier 2 / EU Stage II |
| Certifications | U.S. EPA Tier 2, EU Stage II |
| Country of Origin | United States |
Frequently asked questions
What is the power output of the Cummins QSX15G4?
The Cummins QSX15G4 is rated at 450 kVA standby / 409 kVA prime at 50 Hz (1,500 rpm); and 500 kVA standby / 444 kVA prime at 60 Hz (1,800 rpm).
Does the QSX15G4 run at 50 Hz or 60 Hz?
The Cummins QSX15G4 is available for both 50 Hz (1,500 rpm) and 60 Hz (1,800 rpm).
What fuel does the Cummins QSX15G4 use?
The Cummins QSX15G4 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the QSX15G4?
The Cummins QSX15G4 is an inline-6 (6-cylinder) engine with a displacement of 15 L.
What emissions standard does the QSX15G4 meet?
The Cummins QSX15G4 is certified to U.S. EPA Tier 2 / EU Stage II emissions standards.
Is the Cummins QSX15G4 still in production?
Yes — the Cummins QSX15G4 is a current production model.