Caterpillar
Caterpillar 3412
3400 Series
Caterpillar 3412 27L 12-cylinder diesel engine for generator sets. 800 ekW standby at 60Hz. U.S. EPA Tier 2. Turbocharged Aftercooled.
- Standby Power · 50 Hz
- 800 kVA
- Electrical Output
- 640 kWe
- Cylinders
- V12
- Displacement
- 27 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 | 644.4 | 580 | 725 |
| Standby Power | 711.1 | 640 | 800 |
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 807.8 | 727 | 908.8 |
| Standby Power | 888.9 | 800 | 1000 |
Caterpillar 3412 generator set context
The Caterpillar 3412 is listed here as a diesel generator-drive engine for 50 Hz and 60 Hz generator sets, with a headline 800 kVA / 640 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 | Caterpillar |
| Model | 3412 |
| Series | 3400 Series |
| Configuration | V12 |
| Cylinders | 12 |
| Displacement | 27 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Tier 2 |
| Country of Origin | United States |
Frequently asked questions
What is the power output of the Caterpillar 3412?
The Caterpillar 3412 is rated at 800 kVA standby / 725 kVA prime at 50 Hz (1,500 rpm); and 1,000 kVA standby / 909 kVA prime at 60 Hz (1,800 rpm).
Does the 3412 run at 50 Hz or 60 Hz?
The Caterpillar 3412 is available for both 50 Hz (1,500 rpm) and 60 Hz (1,800 rpm).
What fuel does the Caterpillar 3412 use?
The Caterpillar 3412 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the 3412?
The Caterpillar 3412 is a V12 (12-cylinder) engine with a displacement of 27 L.
What emissions standard does the 3412 meet?
The Caterpillar 3412 is certified to U.S. EPA Tier 2 emissions standards.
Is the Caterpillar 3412 still in production?
Yes — the Caterpillar 3412 is a current production model.
Is a datasheet available for the 3412?
Yes — an official Caterpillar datasheet for the Caterpillar 3412 can be downloaded from this page.
Related Engines
Compare Caterpillar 3412
Reference
- Canonical page
- /engines/caterpillar-3412
- Last database update
- 2026-06-28
- Manufacturer files
- 2 datasheets 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 ↗