DG125 Front Right View
DG125 Front Left View
DG125 Rear Right View
DG125 Rear Left View
DG125 Enclosure Front Left View
DG125 Enclosure Front Right View
Gas generator sets

DG125 (Single-phase and 3 phase)

The Cat® DG125 gas generator set is engineered for stationary emergency and non-emergency power across different operating environments. U.S. EPA certified for both uses, it gives customers more flexibility to power a variety of loads.

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Have questions? Call 800.768.4200

High-efficiency alternator

  • Strong motor-starting capability helps reduce oversizing, while high-efficiency operation contributes to reliable generator set performance.

Dual-fuel engine

  • The 6.2L spark-ignited engine operates on natural gas or propane based on fuel availability.

Single-source support

  • Cat dealer service, parts and warranty coverage extend across the power system for easy ownership and ongoing support.

Programmable controls

  • User-friendly programmable controls support monitoring and configuration for various operating requirements.

Factory-tested package

  • Fully assembled at a Caterpillar facility, each generator set package is tested before leaving the factory.

Cat<sup class="cf-reg">®</sup> Connect monitoring

  • Cat RAM and condition monitoring provide real-time access to performance and health data.

Keep operations running reliably

Select the fuel that fits your site

Reduce maintenance complexity

Generator Set Specifications
Frequency60 Hz
Gas Standby Rating125 ekW
Emissions/Fuel StrategyU.S. EPA Certified for Stationary Emergency and Non-Emergency Application
Voltage208-600
Speed1800 rpm
Natural Gas Rating125 ekW
Engine Specifications
Engine ModelV8, 6.2L TCAC
Bore4 in
Stroke3.75 in
Displacement378.3 in³
Compression Ratio9.8:1
AspirationTCAC
Fuel SystemElectronic
Generator Set Dimensions
Length96 in
Width51 in
Height57 in
Dry Weight - Genset3226 lb

Control Panel

  • GCCP1.2
  • DG125 Spec Sheet
    application/pdf
  • Electric Power Rating guide
    application/pdf
  • DG100 - DG200 Enclosure Brochure
    application/pdf

Need installed dimensions with enclosure and tank? See Model Configurations