Detroit Diesel
Detroit Diesel 12V149
Series 149
Detroit Diesel 12V149 29.3L 12-cylinder 2-stroke diesel engine for generator sets. ~700 ekW standby at 60Hz (representative turbocharged rating). Classic 2-stroke, unregulated. 2-cycle, Turbocharged.
- Standby Power · 50 Hz
- 725 kVA
- Electrical Output
- 580 kWe
- Cylinders
- V12
- Displacement
- 29.3 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 | 583.3 | 525 | 656.3 |
| Standby Power | 644.4 | 580 | 725 |
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 705.6 | 635 | 793.8 |
| Standby Power | 777.8 | 700 | 875 |
Detroit Diesel 12V149 generator set context
The Detroit Diesel 12V149 is listed here as a diesel generator-drive engine for 50 Hz and 60 Hz generator sets, with a headline 725 kVA / 580 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.
Also searched as
Technical Specifications
| Brand | Detroit Diesel |
| Model | 12V149 |
| Series | Series 149 |
| Configuration | V12 |
| Cylinders | 12 |
| Displacement | 29.3 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 12V149?
The Detroit Diesel 12V149 is rated at 725 kVA standby / 656 kVA prime at 50 Hz (1,500 rpm); and 875 kVA standby / 794 kVA prime at 60 Hz (1,800 rpm).
Does the 12V149 run at 50 Hz or 60 Hz?
The Detroit Diesel 12V149 is available for both 50 Hz (1,500 rpm) and 60 Hz (1,800 rpm).
What fuel does the Detroit Diesel 12V149 use?
The Detroit Diesel 12V149 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the 12V149?
The Detroit Diesel 12V149 is a V12 (12-cylinder) engine with a displacement of 29.3 L.
Is the Detroit Diesel 12V149 still in production?
Yes — the Detroit Diesel 12V149 is a current production model.
Is a datasheet available for the 12V149?
Yes — an official Detroit Diesel datasheet for the Detroit Diesel 12V149 can be downloaded from this page.
Related Engines
Compare Detroit Diesel 12V149
Reference
- Canonical page
- /engines/detroit-diesel-12v149
- Last database update
- 2026-06-28
- Manufacturer files
- 1 datasheet linked
Need this engine?
Need a generator package using this engine? Haifeng Machinery can help with sizing, alternator selection, controller, enclosure, voltage, and compliance support.
Get a Quote ↗Or browse Haifeng's diesel generator sets ↗