Waukesha 6D-140
Waukesha 6D-140 discontinued early historical engine model series. The Waukesha Engine Historical Society production table lists this model series from 1936 to 1938; its model-designation guide explains the early letter, six-cylinder, and F-head naming schemes used by these rows. This supports a source-validated legacy page for owners searching parts, service, restoration, and overhaul information.
Production StatusProduction Discontinued
Early Historical Waukesha Model Series
Specifications and documentation remain archived for reference.
- Cylinders
- L6
- 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 | Waukesha |
| Model | 6D-140 |
| Series | Early Historical Waukesha Model Series |
| Configuration | Inline-6 diesel engine model series |
| Cylinders | 6 |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | Historical production ended 1938 |
| Certifications | Waukesha Engine Historical Society production table, Waukesha Engine Historical Society model-designation guide |
| Country of Origin | United States |
| Year Introduced | 1936 |
| Year Discontinued | 1938 |
Check your engine model
The Waukesha 6D-140 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
6d1406D 140Waukesha 6D-140Early Historical Waukesha Model Series 6D-140
6D-140 repair parts
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Parts reference availability
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Frequently asked questions
What fuel does the Waukesha 6D-140 use?
The Waukesha 6D-140 is a diesel generator-set engine.
What is the cylinder configuration of the 6D-140?
The Waukesha 6D-140 is an inline-6 (6-cylinder) engine.
What emissions information is listed for the 6D-140?
This record lists Historical production ended 1938 for the Waukesha 6D-140. 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 6D-140 still in production?
No — the Waukesha 6D-140 is discontinued (production ended around 1938). Its specifications and datasheets remain archived here for reference.
Are reference documents available for the 6D-140?
This page links reference documents for the Waukesha 6D-140. Check each document's title, model coverage, revision and rating conditions before using it for selection.