Caterpillar
Caterpillar D800 GC Legacy Genset
GC Diesel Generator Sets
Caterpillar D800 GC Legacy Genset discontinued/non-current diesel generator-set package. Cat H-CPC marks the source page as Non-Current and links the official LEHE20272-04 Cat spec sheet validating the 800 ekW standby rating.
Overhaul & repair parts- Manufacturer files
- 1 datasheet
- Last updated
- 2026-08-11
- Package route
- diesel generator sets
- Mechanical Output
- 800 kW
- Cylinders
- V12
- Displacement
- 27.03 L
- Rated Speed
- 1,500 RPM
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Caterpillar D800 GC Legacy Genset overhaul & repair parts
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Caterpillar D800 GC Legacy Genset generator set context
The Caterpillar D800 GC Legacy Genset is listed here as a diesel generator-drive engine for 50 Hz generator sets, with a headline 800 kW / 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.
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Technical Specifications
| Brand | Caterpillar |
| Model | D800 GC Legacy Genset |
| Series | GC Diesel Generator Sets |
| Configuration | C27 TA V-12 four-stroke water-cooled diesel generator-set engine |
| Cylinders | 12 |
| Displacement | 27.03 L |
| Compression Ratio | 16.5:1 |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Emergency Stationary Use Only (Tier 2) |
| Certifications | Caterpillar Non-Current product page, Official Caterpillar spec sheet |
| Country of Origin | United States |
Frequently asked questions
What fuel does the Caterpillar D800 GC Legacy Genset use?
The Caterpillar D800 GC Legacy Genset is a diesel generator-set engine.
What is the displacement and cylinder configuration of the D800 GC Legacy Genset?
The Caterpillar D800 GC Legacy Genset is a V12 (12-cylinder) engine with a displacement of 27.03 L.
What emissions information is listed for the D800 GC Legacy Genset?
This record lists U.S. EPA Emergency Stationary Use Only (Tier 2) for the Caterpillar D800 GC Legacy Genset. 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.
Is the D800 GC Legacy Genset still in production?
No — the Caterpillar D800 GC Legacy Genset is discontinued. Its specifications and datasheets remain archived here for reference.
Are reference documents available for the D800 GC Legacy Genset?
This page links reference documents for the Caterpillar D800 GC Legacy Genset. Check each document's title, model coverage, revision and rating conditions before using it for selection.