Caterpillar 3406 Industrial
Caterpillar 3406 Industrial discontinued legacy engine. Source-validated Caterpillar legacy industrial or marine engine model with ongoing parts and rebuild demand.
Production StatusProduction Discontinued
3400 Series
Specifications and documentation remain archived for reference.
- Cylinders
- L6
- Displacement
- 14.6 L
- Rated Speed
- 1,500 RPM
Datasheet & documents
Match the model number on your engine plate to the document. Check its revision date and the speed and duty listed for each power rating.
Technical specifications
Technical Specifications
| Brand | Caterpillar |
| Model | 3406 Industrial |
| Series | 3400 Series |
| Configuration | L6, industrial diesel |
| Cylinders | 6 |
| Displacement | 14.6 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | Unregulated |
| Country of Origin | United States |
Check your engine model
The Caterpillar 3406 Industrial is a diesel generator-drive engine for applications whose frequency must be verified. Match the model and serial number on your engine plate when requesting a manual or parts. The ratings and emissions information below help identify the version fitted to your generator.
Other ways this model is written
3406industrialCaterpillar 3406 Industrial3400 Series 3406 Industrial
3406 Industrial repair parts
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Frequently asked questions
What fuel does the Caterpillar 3406 Industrial use?
The Caterpillar 3406 Industrial is a diesel generator-set engine.
What is the displacement and cylinder configuration of the 3406 Industrial?
The Caterpillar 3406 Industrial is an inline-6 (6-cylinder) engine with a displacement of 14.6 L.
Is the 3406 Industrial still in production?
No — the Caterpillar 3406 Industrial is discontinued. Its specifications and datasheets remain archived here for reference.
Are reference documents available for the 3406 Industrial?
This page links reference documents for the Caterpillar 3406 Industrial. Check each document's title, model coverage, revision and rating conditions before using it for selection.