Detroit Diesel
Detroit Diesel 12V-71
V71 Series
Detroit Diesel 12V-71 discontinued legacy engine. Source-validated Detroit Diesel legacy model with ongoing owner, rebuild, marine, generator, and parts-search demand.
Overhaul & repair parts- Manufacturer files
- 2 datasheets
- Last updated
- 2026-08-04
- Package route
- diesel generator sets
- Cylinders
- V12
- Displacement
- 14 L
- Rated Speed
- 1,500 RPM
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Detroit Diesel 12V-71 overhaul & repair parts
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Detroit Diesel 12V-71 generator set context
The Detroit Diesel 12V-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 | 12V-71 |
| Series | V71 Series |
| Configuration | V12, two-cycle diesel |
| Cylinders | 12 |
| Displacement | 14 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 12V-71 use?
The Detroit Diesel 12V-71 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the 12V-71?
The Detroit Diesel 12V-71 is a V12 (12-cylinder) engine with a displacement of 14 L.
Is the 12V-71 still in production?
No — the Detroit Diesel 12V-71 is discontinued (production ended around 1999). Its specifications and datasheets remain archived here for reference.
Are reference documents available for the 12V-71?
This page links reference documents for the Detroit Diesel 12V-71. Check each document's title, model coverage, revision and rating conditions before using it for selection.