C18 Generator Set
C18 Generator Set
C18 Generator Set
C18 Generator Set

The C18 diesel generator sets developed for critical, standby and prime applications. Producing reliable power from 500 to 750 ekW at 60 Hz, meeting ISO 8528-5 transient response requirements and built to accept 100 percent rated load in one step. Our C18 generator sets range from low fuel consumption systems to EPA Stationary Emergency (Tier 2) certified Emissions / Fuel Strategy.

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Minimum Rating 500 ekW
Maximum Rating 750 ekW
Emissions/Fuel Strategy U.S. EPA Certified
Voltage 208 to 600 Volts
Frequency 60 Hz
Speed 1800 rpm
Duty Cycle Standby, Prime
Engine Model Cat® C18 ATAACTM In-line 6, 4-cycle diesel
Bore 5.71 in
Stroke 7.2 in
Displacement 1106.3 in³
Compression Ratio 14:01
Aspiration Turbocharged Air to Air Aftercooled
Fuel System Electronic unit injection
Governor Type Electronic ADEM™ A4
Length - Maximum 138 in
Width - Maximum 67 in
Height - Maximum 88 in

  • 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

  • UL2200 Listed; CSA 22.2; Certification of Compliance – IBC Seismic; Dual IBC & HCAI

  • 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