Cummins
Cummins C25N6
QSJ2.4G Genset
Cummins C25N6 is a 25 kWe / 31 kVA, 60 Hz standby generator set using the 2.4 L QSJ2.4G spark-ignition engine. Cummins lists the current natural-gas package for EPA stationary emergency and non-emergency applications; the official range brochure identifies EPA emissions certification.
- Standby Power · 60 Hz
- 31 kVA
- Electrical Output
- 25 kWe
- Cylinders
- L4
- Displacement
- 2.4 L
- Rated Speed
- 1,800 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Standby Power | — | 25 | 31 |
Cummins C25N6 generator set context
The Cummins C25N6 is listed here as a natural gas generator-drive engine for 60 Hz generator sets, with a headline 31 kVA / 25 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.
Also searched as
Technical Specifications
| Brand | Cummins |
| Model | C25N6 |
| Series | QSJ2.4G Genset |
| Configuration | Inline-4 Spark Ignition |
| Cylinders | 4 |
| Displacement | 2.4 L |
| Fuel Type | Natural Gas |
| Ignition Type | Spark Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Stationary |
| Certifications | U.S. EPA Stationary, U.S. EPA Stationary Emergency, U.S. EPA Stationary Non-Emergency, U.S. EPA NSPS |
| Country of Origin | United States |
Frequently asked questions
What is the power output of the Cummins C25N6?
The Cummins C25N6 is rated at 31 kVA standby at 60 Hz (1,800 rpm).
Does the C25N6 run at 50 Hz or 60 Hz?
The Cummins C25N6 is rated for 60 Hz (1,800 rpm).
What fuel does the Cummins C25N6 use?
The Cummins C25N6 is a Natural Gas generator-set engine.
What is the displacement and cylinder configuration of the C25N6?
The Cummins C25N6 is an inline-4 (4-cylinder) engine with a displacement of 2.4 L.
What emissions standard does the C25N6 meet?
The Cummins C25N6 is certified to U.S. EPA Stationary emissions standards.
Is the Cummins C25N6 still in production?
Yes — the Cummins C25N6 is a current production model.
Is a datasheet available for the C25N6?
Yes — an official Cummins datasheet for the Cummins C25N6 can be downloaded from this page.
Related Engines
Compare Cummins C25N6
Reference
- Canonical page
- /engines/cummins-c25n6
- Last database update
- 2026-07-26
- Manufacturer files
- 2 datasheets linked
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