Detroit Diesel
Detroit Diesel 12V71
Series 71
Detroit Diesel 12V71 14L 12-cylinder 2-stroke diesel engine for generator sets. ~250 ekW standby at 60Hz (representative turbocharged rating). Classic 2-stroke, unregulated. 2-cycle, Turbocharged.
Overhaul & repair parts- Manufacturer files
- 1 datasheet
- Last updated
- 2026-06-28
- Package route
- diesel generator sets
- Standby Power · 50 Hz
- 263 kVA
- Electrical Output
- 210 kWe
- Cylinders
- V12
- Displacement
- 14 L
- Rated Speed
- 1,500 / 1,800 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
50 Hz1500 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 211.1 | 190 | 237.5 |
| Standby Power | 233.3 | 210 | 262.5 |
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 250 | 225 | 281.3 |
| Standby Power | 277.8 | 250 | 312.5 |
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Detroit Diesel 12V71 generator set context
The Detroit Diesel 12V71 is listed here as a diesel generator-drive engine for 50 Hz and 60 Hz generator sets, with a headline 263 kVA / 210 kWe / standby rating. 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 | 12V71 |
| Series | Series 71 |
| Configuration | V12 |
| Cylinders | 12 |
| Displacement | 14 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | Unregulated |
| Country of Origin | United States |
Frequently asked questions
What is the power output of the Detroit Diesel 12V71?
The Detroit Diesel 12V71 is rated at 263 kVA standby / 238 kVA prime at 50 Hz (1,500 rpm); and 313 kVA standby / 281 kVA prime at 60 Hz (1,800 rpm).
Does the 12V71 run at 50 Hz or 60 Hz?
The Detroit Diesel 12V71 is available for both 50 Hz (1,500 rpm) and 60 Hz (1,800 rpm).
What fuel does the Detroit Diesel 12V71 use?
The Detroit Diesel 12V71 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the 12V71?
The Detroit Diesel 12V71 is a V12 (12-cylinder) engine with a displacement of 14 L.
What is the catalog status of the Detroit Diesel 12V71?
The Detroit Diesel 12V71 is marked active in this database. Confirm current production and availability with the manufacturer; catalog status is not a live supply check.
Are reference documents available for the 12V71?
This page links reference documents for the Detroit Diesel 12V71. Check each document's title, model coverage, revision and rating conditions before using it for selection.