For Sale by Generator Source
Description
New surplus 4200kW Waukesha natural gas generator, model 12V-AT27GL, 12470 volts, three-phase, open configuration, 2004 build with 0 hours. This large-capacity gaseous genset is ready to ship from Generator Source's Brighton, Colorado facility.
Rated at 4200kW and configured for 12470V three-phase service at medium voltage, this unit delivers 1215 amps at full load. Power comes from a Waukesha 12V-AT27GL natural gas engine, and the 6-lead alternator suits utility-scale and heavy industrial applications where a clean-burning gaseous fuel source is preferred over diesel, including power generation, oil and gas operations, large data centers, water and wastewater treatment plants, and municipal infrastructure. The open configuration allows for installation in a purpose-built power house or on-site enclosure.
As a new-surplus, 0-hour unit, this 2004 Waukesha offers new-unit condition with the availability and pricing advantages of surplus stock. Unit #090975 is in stock and available now. Contact Generator Source for current pricing, spec sheets, additional photos, and freight quotes to your location.













