Cummins
Cummins QSL9G
QSL9G Series
Cummins QSL9G 8.9 L inline-6 turbocharged and aftercooled natural-gas engine rated 175 hp (131 kWm) at 1800 RPM. Cummins identifies the engine as 2011 NSPS compliant capable with the factory supplied air-fuel-ratio control and catalyst.
Overhaul & repair parts- Manufacturer files
- No datasheet
- Last updated
- 2026-07-25
- Package route
- gas generator sets
- Mechanical Output
- 131 kW
- Cylinders
- L6
- Displacement
- 8.9 L
- Rated Speed
- 1,500 RPM
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Cummins QSL9G overhaul & repair parts
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Cummins QSL9G generator set context
The Cummins QSL9G is listed here as a natural gas generator-drive engine for 50 Hz generator sets, with a headline 131 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.
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Technical Specifications
| Brand | Cummins |
| Model | QSL9G |
| Series | QSL9G Series |
| Configuration | L6 Turbocharged Aftercooled |
| Cylinders | 6 |
| Displacement | 8.9 L |
| Fuel Type | Natural Gas |
| Ignition Type | Spark Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Stationary |
| Certifications | U.S. EPA NSPS 2011 Compliant Capable |
| Country of Origin | United States |
Frequently asked questions
What fuel does the Cummins QSL9G use?
The Cummins QSL9G is a Natural Gas generator-set engine.
What is the displacement and cylinder configuration of the QSL9G?
The Cummins QSL9G is an inline-6 (6-cylinder) engine with a displacement of 8.9 L.
What emissions information is listed for the QSL9G?
This record lists U.S. EPA Stationary for the Cummins QSL9G. 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 QSL9G?
The Cummins QSL9G is marked active in this database. Confirm current production and availability with the manufacturer; catalog status is not a live supply check.