Caterpillar
Caterpillar G3520
3500
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).
- Prime Power · 50 Hz
- 3,125 kVA
- Electrical Output
- 2,500 kWe
- Cylinders
- V20
- Displacement
- 84.2 L
- Rated Speed
- 1,500 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
50 Hz1500 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | — | 2500 | 3125 |
Caterpillar G3520 generator set context
The Caterpillar G3520 is listed here as a natural gas generator-drive engine for 50 Hz generator sets, with a headline 3,125 kVA / 2,500 kWe / prime 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 | 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 |
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 standard does the G3520 meet?
The Caterpillar G3520 is certified to U.S. EPA Stationary emissions standards.
Is the Caterpillar G3520 still in production?
Yes — the Caterpillar G3520 is a current production model.
Is a datasheet available for the G3520?
Yes — an official Caterpillar datasheet for the Caterpillar G3520 can be downloaded from this page.
Related Engines
Compare Caterpillar G3520
Reference
- Canonical page
- /engines/caterpillar-g3520
- Last database update
- 2026-06-11
- Manufacturer files
- 1 datasheet linked
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