MAN
MAN D2866 LE203
D2866 Generator Diesel
MAN D2866 LE203 discontinued legacy engine. Source-validated legacy MAN D-Series industrial, marine, or generator-set diesel from MAN operating instructions and legacy D-Series parts references.
Overhaul & repair parts- Manufacturer files
- 1 datasheet
- Last updated
- 2026-08-04
- Package route
- diesel generator sets
- Cylinders
- L6
- Displacement
- 11.967 L
- Rated Speed
- 1,500 RPM
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MAN D2866 LE203 overhaul & repair parts
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MAN D2866 LE203 generator set context
The MAN D2866 LE203 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 | MAN |
| Model | D2866 LE203 |
| Series | D2866 Generator Diesel |
| Configuration | L6, turbocharged charge-air-cooled generator-drive diesel |
| Cylinders | 6 |
| Displacement | 11.967 L |
| Compression Ratio | 17.0:1 |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | Unregulated |
| Country of Origin | Germany |
Frequently asked questions
What fuel does the MAN D2866 LE203 use?
The MAN D2866 LE203 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the D2866 LE203?
The MAN D2866 LE203 is an inline-6 (6-cylinder) engine with a displacement of 11.967 L.
Is the D2866 LE203 still in production?
No — the MAN D2866 LE203 is discontinued. Its specifications and datasheets remain archived here for reference.
Are reference documents available for the D2866 LE203?
This page links reference documents for the MAN D2866 LE203. Check each document's title, model coverage, revision and rating conditions before using it for selection.