Detroit Diesel
Detroit Diesel 3-71
Inline 71 Series
Detroit Diesel 3-71 discontinued legacy engine. Source-validated Detroit Diesel legacy model with ongoing owner, rebuild, marine, generator, and parts-search demand.
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- Manufacturer files
- 1 datasheet
- Last updated
- 2026-08-04
- Package route
- diesel generator sets
- Cylinders
- L3
- Displacement
- 3.5 L
- Rated Speed
- 1,500 RPM
Detroit Diesel 3-71 generator set context
The Detroit Diesel 3-71 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 | Detroit Diesel |
| Model | 3-71 |
| Series | Inline 71 Series |
| Configuration | L3, two-cycle diesel |
| Cylinders | 3 |
| Displacement | 3.5 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | Unregulated |
| Country of Origin | United States |
| Year Discontinued | 1999 |
Frequently asked questions
What fuel does the Detroit Diesel 3-71 use?
The Detroit Diesel 3-71 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the 3-71?
The Detroit Diesel 3-71 is an inline-3 (3-cylinder) engine with a displacement of 3.5 L.
Is the 3-71 still in production?
No — the Detroit Diesel 3-71 is discontinued (production ended around 1999). Its specifications and datasheets remain archived here for reference.
Is a datasheet available for the 3-71?
Yes — an official Detroit Diesel datasheet for the Detroit Diesel 3-71 can be downloaded from this page.