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

The C18 diesel generator sets have been developed for your mission critical, standby and prime applications. Producing reliable power from 455 to 500 ekW at 60 Hz, meeting ISO 8528-5 transient response requirements and built to accept 100 percent rated load in one step. The engines are certified to the US EPA Tier 4 Final emissions levels.

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Minimum Rating 455 ekW
Maximum Rating 500 ekW
Emissions/Fuel Strategy U.S. EPA Tier 4 Final
Voltage 480 Volts
Frequency 60 Hz
Speed 1800 rpm
Duty Cycle Standby, Prime
Engine Model C18 ATAAC, I-6, 4-Stroke Water-Cooled Diesel
Bore 1455.7 in
Stroke 7.2 in
Displacement 1106.4 in³
Compression Ratio 14.5:1
Aspiration Air to Air Aftercooled
Fuel System Electronic unit injection
Governor Type Adem™A4

  • 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

  • The Tier 4 Final engine has been optimized to work with the Cat CEM.
  • The CEM is a reliable, compact, and lightweight system that gives maximum installation flexibility.
  • It features a diesel oxidation catalyst for particulate matter (PM) and hydrocarbon (HC) control.
  • Selective catalytic reduction (SCR) reduces NOx output and provides integrated sound attenuation.
  • The CEM is controlled by a separate dosing module that has been integrated into the standard generator set controls for complete monitoring, protection and closed loop NOx control.
  • For more information on the CEM, refer to cut sheet LEHE0359.

  • UL 2200 listed packages
  • CSA Certified
  • Certain restrictions may apply.
  • Consult with your Cat® Dealer.