Cummins
Cummins QSL9-G5
QSL9
Cummins QSL9-G5 8.8L 6-cylinder diesel engine for generator sets. 250 kWe prime / 275 kWe standby at 60Hz. EPA Tier 3. Turbocharged, Intercooled.
Overhaul & repair parts- Manufacturer files
- 1 datasheet
- Last updated
- 2026-06-28
- 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 | 244.4 | 220 | 275 |
| Standby Power | 266.7 | 240 | 300 |
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 277.8 | 250 | 312.5 |
| Standby Power | 305.6 | 275 | 343.8 |
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Cummins QSL9-G5 overhaul & repair parts
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Cummins QSL9-G5 generator set context
The Cummins QSL9-G5 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 | QSL9-G5 |
| Series | QSL9 |
| Configuration | L6 |
| Cylinders | 6 |
| Displacement | 8.8 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Tier 3 |
| Country of Origin | United States |
Frequently asked questions
What is the power output of the Cummins QSL9-G5?
The Cummins QSL9-G5 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 QSL9-G5 run at 50 Hz or 60 Hz?
The Cummins QSL9-G5 is available for both 50 Hz (1,500 rpm) and 60 Hz (1,800 rpm).
What fuel does the Cummins QSL9-G5 use?
The Cummins QSL9-G5 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the QSL9-G5?
The Cummins QSL9-G5 is an inline-6 (6-cylinder) engine with a displacement of 8.8 L.
What emissions information is listed for the QSL9-G5?
This record lists U.S. EPA Tier 3 for the Cummins QSL9-G5. 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 QSL9-G5?
The Cummins QSL9-G5 is marked active in this database. Confirm current production and availability with the manufacturer; catalog status is not a live supply check.
Are reference documents available for the QSL9-G5?
This page links reference documents for the Cummins QSL9-G5. Check each document's title, model coverage, revision and rating conditions before using it for selection.