D125 GC Generator Set
D125 GC Generator Set
D125 GC Generator Set
D125 GC Generator Set

Producing reliable power of 125 ekW at 60 Hz, our D125 GC diesel generator sets designed to ISO 8528-5 transient response requirements. All D125 GC generator sets are available with a choice of emissions levels.

Get Pricing
Minimum Rating 125 ekW
Maximum Rating 125 ekW
Emissions/Fuel Strategy U.S. EPA Cert., Tier 3
Voltage 208 to 600 Volts
Frequency 60 Hz
Speed 1800 rpm
Duty Cycle Standby
Engine Model C7.1 I-6, 4-Cycle Diesel
Bore 4.1 in
Stroke 5.3 in
Displacement 428 in³
Compression Ratio 16.7:1
Aspiration Turbocharged, Air to Air Aftercooled
Fuel System Electronic, Common Rail
Governor Type ADEM™A4
Length - Maximum 103.7 in
Width - Maximum 51.2 in
Height - Maximum 52.2 in
Dry Weight - Genset (maximum) 3099 lb

  • Cat generator set packages have been fully prototype tested
  • Accepts 100% block load in one step and meets NFPA 110 loading requirements
  • Conform to ISO 8528-5 steady state and transient response requirements

  • Reliable, rugged, durable design
  • Field-proven in thousands of applications worldwide
  • Four-stroke-cycle diesel engine combines consistent performance and excellent fuel economy with minimum weight

  • Superior motor starting capability minimizes need for oversizing alternator
  • Designed to match performance and output characteristics of Cat diesel engines
  • Robust Class H insulation

  • User-friendly interface and navigation
  • Scalable system to meet a wide range of installation requirement
  • Expansion modules and site-specific programming for specific customer requirements

  • Designed to operate in standard ambient temperatures up to 55°C (131°F)
  • Contact your Cat Dealer for specific ambient and altitude capabilities

  • UL 2200 Listed
  • ULC Certification Available

  • Components used in the generator set are selected based on seamless design integration to provide the optimum performance
  • The generator set is fully assembled at a Caterpillar facility following our quality guidelines
  • Each generator set package is tested before leaving the Caterpillar facility
  • Cat product support, including dealer service, parts and warranty covers the entire Cat power system

  • Cat dealers have over 1,800 dealer branch stores operating in 200 countries
  • Your local Cat dealer provides extensive post-sale support, including maintenance and repair agreements