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From natural gas-fueled combined heat and power (CHP) systems and emergency power for facilities, to renewable biogas energy to support the local grid, or electricity generated from coal mine gases, Caterpillar has a wide range of reliable gas power solutions.

Gas Generator Sets Specification

Maximum Continuous Rating 2027 ekW 2027 ekW Less
Fuel Type Natural Gas Natural Gas Less
Maximum Electrical Efficiency 44.7% 44.7% Less
Maximum Standby Rating 2027 2027 Less
Frequency 50/60Hz 50/60Hz Less
rpm 1500rpm 1500rpm Less

Engine Specification

Engine Model G3516H G3516H Less
Bore 6.7 in 170.0 mm Less
Stroke 8.5 in 215.0 mm Less
Displacement 4765.0 in3 78.0 L Less
Aspiration TA TA Less

Generator Set Dimension

Length 291.0 in 7395.0 mm Less
Width 84.0 in 2139.0 mm Less
Height 95.0 in 2402.0 mm Less
Dry weight genset 40384.0 lb 18315.0 kg Less


Meets most worldwide emissions requirements down to 0.5 g/bhp-hr Nox level without aftertreatment

Full Range of Attachments

  • Wide range of bolt-on system expansion attachments, factory designed and tested
  • Flexible packaging options for easy and cost effective installation
  • Proven system

    World Wide Product Support

    Cat Dealers provide extensive post sale support including maintenance and repair agreements. Cat dealers have over 1,800 dealer branch stores operating in 200 countries. The Cat® S•O•SSM program cost effectively detects internal engine component condition, even the presence of unwanted fluids and combustion by-products.

    CAT® G3516C & G3516H Gas Engine

    Robust high speed diesel block design provides prolonged life and lower owning operationg costs. Designed for maximum performance on low pressure gaseous fuel supply. Simple open chamber combustion system for reliability and fuel flexibility. Leading edge technology in ignition system and air/fuel ratio control for lower emission and engine efficiency. One electronic control module handles all engine functions: ignition, governing, air/fuel ratio control and engine protection

    Cat SR4B Generator

    Designed to match performance and output characteristics of Caterpillar gas engines. Industry leading mechanical and electrical design. High efficiency

    Cat EMCP4 Control Panel

    The EMCP controller features the reliability and durability you have come to expect from your Cat equipment. EMCP4 is a scalable control platform designed to ensure reliable generator set operation, providing extensive information about power output and engine operation. EMCP4 systems can be further customized to meet your needs through programming and expansion modules.

    G3516H Standard Equipment

    Air Inlet
    • Package Mounted Air Cleaner with service indicator

    Control Panels
    • EMCP 4.3 Genset Controller
    • Dedicated customer wiring terminals

    • Engine driven water pumps for jacket water and aftercooler
    • Flanged coolant outlet

    • Center section cooled turbocharger with Cat flanged outlet

    Fuel system
    • Basic pressure and regulation and filtration

    • High efficiency low voltage Cat generator, permanent magnet excitation, digital regulation, IP23 water ingress protection, & form wound construction.

    • Electric Starter

    • Paint - Caterpillar Yellow except rails and radiators gloss black
    • Crankshaft vibration damper and guard
    • Operation and maintenance manuals
    • Parts book

    G3516H Optional Equipment

    Air Inlet
    • Heavy Duty air cleaner with precleaner

    Control Panels
    • Remote master controls and utility grade paralleling switchgear
    • Generator bearing temperature monitoring
    • Local/Remote annunciation modules
    • Discrete digital I/O module
    • Remote monitoring software

    • Electric jacket water and aftercooler pumps
    • Package mounted (<1000kW), horizontal, or remote radiators
    • Combined heat and power skid with heat exchangers, electric pumps, expansion tank, controls, and auxiliary oil resevior

    • Exhaust silencers, CO catalyst, NOx catalyst

    Fuel System
    • NFPA37, EN746-2, CSA B149.1, AS 5601/3814 compiant fuel train including monitoring, safety shutoff devices, and flexible conduit

    • Medium and High Voltage Cat generator, Coastal Protection, Oversized, and Premium options


    Cat® Dealer Service

    Buy any piece of Cat® equipment and also get the full support and commitment of your local Cat Dealer.

    Contact your local dealer
    Biogas Project Financing

    Cat Financial stands behind a wide range of projects utilizing renewable biogas to fuel generator sets.

    See our Offers