Caterpillar
Caterpillar 3406 Marine
3400 Series
Caterpillar 3406 Marine discontinued legacy engine. Source-validated Caterpillar legacy industrial or marine engine model with ongoing parts and rebuild demand.
Chat on WhatsApp about this engine
Opens WhatsApp with Caterpillar 3406 Marine and this page link filled in.
- Manufacturer files
- No datasheet
- Last updated
- 2026-08-04
- Package route
- diesel generator sets
- Cylinders
- L6
- Displacement
- 14.6 L
- Rated Speed
- 1,500 RPM
Caterpillar 3406 Marine generator set context
The Caterpillar 3406 Marine is listed here as a diesel generator-drive engine for 50 Hz generator sets. 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 | Caterpillar |
| Model | 3406 Marine |
| Series | 3400 Series |
| Configuration | L6, marine 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 |
Frequently asked questions
What fuel does the Caterpillar 3406 Marine use?
The Caterpillar 3406 Marine is a diesel generator-set engine.
What is the displacement and cylinder configuration of the 3406 Marine?
The Caterpillar 3406 Marine is an inline-6 (6-cylinder) engine with a displacement of 14.6 L.
Is the 3406 Marine still in production?
No — the Caterpillar 3406 Marine is discontinued. Its specifications and datasheets remain archived here for reference.