Caterpillar G3520
Caterpillar G3520 — 84.2 L V20 (170 × 190 mm) 4-stroke spark-ignited natural-gas generator-set engine (Cat 3500 series). 1750–2500 ekW across ratings/variants (standard & high-efficiency H), 1500 rpm (50 Hz) / 1800 rpm (60 Hz).
Production StatusIn Production
3500
- Configuration
- V20
- Displacement
- 84.2 L
- Fuel
- Natural Gas
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
50 Hz1500 RPM
| Rating | Prime |
|---|---|
| Electrical output kWe | 2,500 |
| Apparent power kVA | 3,125 |
Datasheet & documents
Match the model number on your engine plate to the document. Check its revision date and the speed and duty listed for each power rating.
Technical specifications
Technical Specifications
| Brand | Caterpillar |
| Model | G3520 |
| Series | 3500 |
| Configuration | V20 |
| Cylinders | 20 |
| Displacement | 84.2 L |
| Fuel Type | Natural Gas |
| Ignition Type | Spark Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Stationary |
| Country of Origin | United States |
Check your engine model
The Caterpillar G3520 is a natural gas generator-drive engine for 50 Hz generator sets, rated at 3,125 kVA / 2,500 kWe / prime 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
g3520Caterpillar G35203500 G3520
G3520 repair parts
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Part-number references
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- Overhaul kit533-0854
Fitment details & source
Top end overhaul foundational kit
Fitment check: The archived source prints complete Caterpillar model G3520 and exact top end overhaul foundational kit part number 533-0854 in one bounded record. Official Caterpillar overhaul-kit table. The complete case-sensitive inventory token G3520 is used exactly as printed inside the source's 'G3520 EPG' application label; EPG is retained in this locator and is not treated as another inventory model. The table warns that configurations vary, so no serial prefix, arrangement, quantity, or alternate kit is imported; confirm the complete engine serial number with a Cat dealer before ordering.
Source: Caterpillar Electric Power Bundled Repair Solutions: G3520 Engines
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Frequently asked questions
What is the power output of the Caterpillar G3520?
The Caterpillar G3520 is rated at 3,125 kVA prime at 50 Hz (1,500 rpm).
Does the G3520 run at 50 Hz or 60 Hz?
The Caterpillar G3520 is rated for 50 Hz (1,500 rpm).
What fuel does the Caterpillar G3520 use?
The Caterpillar G3520 is a Natural Gas generator-set engine.
What is the displacement and cylinder configuration of the G3520?
The Caterpillar G3520 is a V20 (20-cylinder) engine with a displacement of 84.2 L.
What emissions information is listed for the G3520?
This record lists U.S. EPA Stationary for the Caterpillar G3520. 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 G3520?
The Caterpillar G3520 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 G3520?
This page links reference documents for the Caterpillar G3520. Check each document's title, model coverage, revision and rating conditions before using it for selection.