Generac
Generac QT025A
QuietSource
Generac QT025A is a 2.4 L inline-4 naturally aspirated gaseous engine generator rated 25 kWe standby at 1800 RPM on natural gas or propane vapor. Generac lists EPA stationary-emergency certification, and EPA annual data lists a 38.6 kWm node. The 6.8 L displacement shown on one 2024 EPA row is a source error.
- 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 | 31.25 |
Generac QT025A generator set context
The Generac QT025A 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 | Generac |
| Model | QT025A |
| Series | QuietSource |
| Configuration | L4 Naturally Aspirated |
| Cylinders | 4 |
| Displacement | 2.4 L |
| Compression Ratio | 9.5:1 |
| Fuel Type | Natural Gas |
| Ignition Type | Spark Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Stationary |
| Certifications | U.S. EPA Stationary Emergency |
| Country of Origin | United States |
Frequently asked questions
What is the power output of the Generac QT025A?
The Generac QT025A is rated at 31 kVA standby at 60 Hz (1,800 rpm).
Does the QT025A run at 50 Hz or 60 Hz?
The Generac QT025A is rated for 60 Hz (1,800 rpm).
What fuel does the Generac QT025A use?
The Generac QT025A is a Natural Gas generator-set engine.
What is the displacement and cylinder configuration of the QT025A?
The Generac QT025A is an inline-4 (4-cylinder) engine with a displacement of 2.4 L.
What emissions standard does the QT025A meet?
The Generac QT025A is certified to U.S. EPA Stationary emissions standards.
Is the Generac QT025A still in production?
Yes — the Generac QT025A is a current production model.
Is a datasheet available for the QT025A?
Yes — an official Generac datasheet for the Generac QT025A can be downloaded from this page.
Related Engines
Compare Generac QT025A
Reference
- Canonical page
- /engines/generac-qt025a
- Last database update
- 2026-07-25
- Manufacturer files
- 1 datasheet linked
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