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Rebuilt Caterpillar G3512 Natural Gas Industrial Generator Set – Continuous Rating: 650KW, 813.5KVA, 60Hz, 4160V, 1200RPM – 3 phase, 6 wire lead – 11:1 Compression Ratio – Open skid mounted – Remote Radiator Available (Shipped Loose) – Previously Rebuilt by the local CAT dealer – Please see the attached Build Sheet, Inspection Photos, and Inspection Report for Additional Information – To View a Video of the unit please copy and paste this link: https://www.youtube.com/watch?v=DepUWNfd74c
| Item Number | GS3669 |
|---|---|
| Kw | |
| Kva | |
| Frequency | 60 |
| Rpm | 1200 |
| Fuel Type | |
| Enclosure Portable | |
| Manufacturer | |
| Serial Number Prefix | 4KC |
| Horsepower | 860 |
| Condition |
Please select the photos that you would like to download in a zip file
When your operation demands reliable, continuous power without compromise, this professionally rebuilt Caterpillar G3512 Natural Gas Generator delivers proven performance you can trust. Expertly rebuilt by an authorized CAT dealer, this 650kW powerhouse represents industrial-grade reliability at an exceptional value.
Engineered for continuous duty applications, this G3512 generator set provides 650kW (813.5 KVA) of stable, three-phase power at 60Hz and 4160V – ideal for manufacturing facilities, data centers, hospitals, and large commercial operations where downtime simply isn't an option. The robust 1200 RPM operating speed ensures longevity and fuel efficiency while maintaining peak performance.
Purchase with confidence knowing exactly what you're getting. This generator set includes comprehensive documentation including detailed build sheets, professional inspection reports, and high-quality inspection photos. Watch the unit in operation via our video demonstration to see this reliable powerhouse running smoothly: View Generator Video
Caterpillar's G3512 series has earned its reputation as one of the most reliable natural gas generator platforms in the industry. With its proven V-12 engine design and robust construction, this generator set is built to deliver decades of dependable service when properly maintained. The natural gas fuel system offers lower maintenance requirements and extended service intervals compared to diesel alternatives.
This rebuilt Caterpillar G3512 represents a smart investment for operations requiring continuous, reliable power generation. With professional rebuild documentation, verified performance, and the legendary durability of the Caterpillar brand, you're acquiring a proven power solution at a fraction of new equipment costs.
Don't let this opportunity pass. Quality rebuilt industrial generators of this caliber are increasingly difficult to source. Contact Power Generation Enterprises today to discuss delivery options, installation support, and how this G3512 can meet your specific power generation requirements.
SKU: GS3669 | All documentation, inspection reports, and build sheets available upon request.




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