Komatsu
Komatsu SAA6D125E
125 Series
Komatsu SAA6D125E 11.04L 6-cylinder diesel engine for generator sets. ~320 kWe standby at 50Hz (representative rating). Air-to-air aftercooled. Unregulated. Turbocharged Aftercooled.
Overhaul & repair parts- Manufacturer files
- 1 datasheet
- Last updated
- 2026-06-11
- Package route
- diesel generator sets
- Standby Power · 50 Hz
- 400 kVA
- Electrical Output
- 320 kWe
- Cylinders
- L6
- Displacement
- 11.04 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 | 320 | 288 | 360 |
| Standby Power | 355.6 | 320 | 400 |
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 384 | 345.6 | 432 |
| Standby Power | 426.7 | 384 | 480 |
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Komatsu SAA6D125E overhaul & repair parts
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Komatsu SAA6D125E generator set context
The Komatsu SAA6D125E is listed here as a diesel generator-drive engine for 50 Hz and 60 Hz generator sets, with a headline 400 kVA / 320 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 | Komatsu |
| Model | SAA6D125E |
| Series | 125 Series |
| Configuration | L6 |
| Cylinders | 6 |
| Displacement | 11.04 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | Unregulated |
| Country of Origin | Japan |
Frequently asked questions
What is the power output of the Komatsu SAA6D125E?
The Komatsu SAA6D125E is rated at 400 kVA standby / 360 kVA prime at 50 Hz (1,500 rpm); and 480 kVA standby / 432 kVA prime at 60 Hz (1,800 rpm).
Does the SAA6D125E run at 50 Hz or 60 Hz?
The Komatsu SAA6D125E is available for both 50 Hz (1,500 rpm) and 60 Hz (1,800 rpm).
What fuel does the Komatsu SAA6D125E use?
The Komatsu SAA6D125E is a diesel generator-set engine.
What is the displacement and cylinder configuration of the SAA6D125E?
The Komatsu SAA6D125E is an inline-6 (6-cylinder) engine with a displacement of 11.04 L.
What is the catalog status of the Komatsu SAA6D125E?
The Komatsu SAA6D125E 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 SAA6D125E?
This page links reference documents for the Komatsu SAA6D125E. Check each document's title, model coverage, revision and rating conditions before using it for selection.