Cummins
Cummins QSL9G4
QSL Series
Cummins QSL9G4 generator-drive diesel engine discovered in the GenProBase public selector. GenProBase lists 2 row(s) across 50Hz, 60Hz with 8.8 L displacement, 6L cylinders, liquid-cooled cooling, and U.S. EPA Tier 3 / EU Stage IIIA / China III emissions labeling. Treat this row as source-discovered and prioritize OEM datasheet attachment in a follow-up pass.
Overhaul & repair parts- Manufacturer files
- No datasheet
- Last updated
- 2026-08-05
- Package route
- diesel generator sets
- Standby Power · 50 Hz
- 300 kVA
- Electrical Output
- 240 kWe
- Cylinders
- L6
- Displacement
- 8.8 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 | 245 | 220 | — |
| Standby Power | 279 | 240 | — |
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 282 | 250 | — |
| Standby Power | 321 | 275 | — |
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Cummins QSL9G4 overhaul & repair parts
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Cummins QSL9G4 generator set context
The Cummins QSL9G4 is listed here as a diesel generator-drive engine for 50 Hz and 60 Hz generator sets, with a headline 300 kVA / 240 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 | QSL9G4 |
| Series | QSL Series |
| Configuration | L6, turbocharged aftercooled |
| Cylinders | 6 |
| Displacement | 8.8 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Tier 3 / EU Stage IIIA / China III |
| Certifications | U.S. EPA Tier 3, EU Stage IIIA, China III |
| Country of Origin | United States / United Kingdom |
Frequently asked questions
What is the power output of the Cummins QSL9G4?
The Cummins QSL9G4 is rated at 300 kVA standby / 275 kVA prime at 50 Hz (1,500 rpm); and 344 kVA standby / 313 kVA prime at 60 Hz (1,800 rpm).
Does the QSL9G4 run at 50 Hz or 60 Hz?
The Cummins QSL9G4 is available for both 50 Hz (1,500 rpm) and 60 Hz (1,800 rpm).
What fuel does the Cummins QSL9G4 use?
The Cummins QSL9G4 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the QSL9G4?
The Cummins QSL9G4 is an inline-6 (6-cylinder) engine with a displacement of 8.8 L.
What emissions information is listed for the QSL9G4?
This record lists U.S. EPA Tier 3 / EU Stage IIIA / China III for the Cummins QSL9G4. Confirm the exact engine family, model year, configuration and applicable manufacturer certification documents before specifying it for a regulated project. A database label does not establish certification of a complete generator package.
What is the catalog status of the Cummins QSL9G4?
The Cummins QSL9G4 is marked active in this database. Confirm current production and availability with the manufacturer; catalog status is not a live supply check.