Kubota
Kubota EA400
EA Series
Kubota EA400 discontinued legacy small diesel engine. Kubota Engine Parts Direct lists EA400 under Discontinued Engine Series, Kubota Genuine Parts Catalog lists EA400-N/NB in the EA series, and the small-diesel manual table gives 401 cc displacement.
Overhaul & repair parts- Manufacturer files
- No datasheet
- Last updated
- 2026-08-11
- Package route
- diesel generator sets
- Cylinders
- L1
- Displacement
- 0.401 L
- Rated Speed
- 1,500 RPM
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Kubota EA400 overhaul & repair parts
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Kubota EA400 generator set context
The Kubota EA400 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.
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Technical Specifications
| Brand | Kubota |
| Model | EA400 |
| Series | EA Series |
| Configuration | Single-cylinder, four-stroke diesel |
| Cylinders | 1 |
| Displacement | 0.401 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | Legacy pre-current small diesel |
| Country of Origin | Japan |
Frequently asked questions
What fuel does the Kubota EA400 use?
The Kubota EA400 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the EA400?
The Kubota EA400 is an inline-1 (1-cylinder) engine with a displacement of 0.401 L.
What emissions information is listed for the EA400?
This record lists Legacy pre-current small diesel for the Kubota EA400. Confirm the exact engine family, model year, configuration and applicable manufacturer certification documents before specifying it for a regulated project. A database label does not establish certification of a complete generator package.
Is the EA400 still in production?
No — the Kubota EA400 is discontinued. Its specifications and datasheets remain archived here for reference.