Caterpillar 3612
Caterpillar 3612 — 221.6 L V12 turbocharged-aftercooled diesel generator engine (Cat 3600 series). 4300 ekW standby / 3880 ekW prime @ 50 Hz, 4000 / 3640 ekW @ 60 Hz; medium-speed V12 (280×300 mm); marketed as C280-12 (IMO/EPA Tier 2) marine. Source: Cat 2024 Electric Power Ratings Guide.
Production StatusIn Production
3600 Series
- Configuration
- V12
- Displacement
- 221.6 L
- Fuel
- Diesel
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
50 Hz1000 RPM
| Rating | Prime | Standby |
|---|---|---|
| Electrical output kWe | 3,880 | 4,300 |
| Apparent power kVA | 4,850 | 5,375 |
60 Hz1200 RPM
| Rating | Prime | Standby |
|---|---|---|
| Electrical output kWe | 3,640 | 4,000 |
| Apparent power kVA | 4,550 | 5,000 |
Datasheet & documents
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Technical specifications
Technical Specifications
| Brand | Caterpillar |
| Model | 3612 |
| Series | 3600 Series |
| Configuration | V12 |
| Cylinders | 12 |
| Displacement | 221.6 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Tier 2 |
| Country of Origin | United States |
Check your engine model
The Caterpillar 3612 is a diesel generator-drive engine for 50 Hz and 60 Hz generator sets, rated at 5,375 kVA / 4,300 kWe / standby rating. Match the model and serial number on your engine plate when requesting a manual or parts. The ratings and emissions information below help identify the version fitted to your generator.
Other ways this model is written
Caterpillar 36123600 Series 3612
3612 repair parts
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Frequently asked questions
What is the power output of the Caterpillar 3612?
The Caterpillar 3612 is rated at 5,375 kVA standby / 4,850 kVA prime at 50 Hz (1,000 rpm); and 5,000 kVA standby / 4,550 kVA prime at 60 Hz (1,200 rpm).
Does the 3612 run at 50 Hz or 60 Hz?
The Caterpillar 3612 is available for both 50 Hz (1,000 rpm) and 60 Hz (1,200 rpm).
What fuel does the Caterpillar 3612 use?
The Caterpillar 3612 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the 3612?
The Caterpillar 3612 is a V12 (12-cylinder) engine with a displacement of 221.6 L.
What emissions information is listed for the 3612?
This record lists U.S. EPA Tier 2 for the Caterpillar 3612. Confirm the exact engine family, model year, configuration and applicable manufacturer certification documents before specifying it for a regulated project. A database label does not establish certification of a complete generator package.
What is the catalog status of the Caterpillar 3612?
The Caterpillar 3612 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 3612?
This page links reference documents for the Caterpillar 3612. Check each document's title, model coverage, revision and rating conditions before using it for selection.