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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 1603 ekW 1603 ekW Less
Fuel Type Natural Gas Natural Gas Less
Maximum Electrical Efficiency 41.7% 41.7% Less
Maximum Standby Rating 1603 1603 Less
Frequency 50 Hz 50 Hz Less
rpm 1500rpm 1500rpm Less

Engine Specification

Engine Model G3516E G3516E Less
Bore 6.7 in 170.0 mm Less
Stroke 7.5 in 190.0 mm Less
Displacement 4210.0 in3 69.0 L Less
Aspiration TA TA Less

Generator Set Dimension

Length 219.0 in 5523.0 mm Less
Width 72.0 in 1828.0 mm Less
Height 92.0 in 2340.0 mm Less
Dry weight genset 31226.0 lb 14161.0 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 SR4B Generator

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

    Cat EMCP II+ Control System

    Simple user friendly interface and navigation. Digital monitoring, metering and protection setting. Fully-featured power metering and protective relaying. UL508A listed. Remote control and monitor capability options

    CAT® G3516E 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 hamber 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

    G3516E Standard Equipment

    Air Inlet
    • Two-element single-stage air cleaner with enclosure and service indicator

    Control Panels
    • EMCP II+

    • Engine driven water pumps for jacket water and aftercooler
    • Jacket water and SCAC thermostats
    • ANSI/DN customer flange connections for JW inlet and outlet
    • Cat flanges on SCAC circuit

    • Dry exhaust manifolds, insulated and shielded
    • Center section cooled turbocharger with Cat flanged outlet
    • Individual exhaust port and turbocharger outlet wired to Integrated Tmeperature Sensing Module (ITSM) with GECM providing alarms and shutdowns

    • Engine driven water pumps for jacket water and aftercooler
    • Jacket water and SCAC thermostats
    • ANSI/DN customer flange connections for JW inlet and outlet
    • Cat flanges on SCAC circuit

    Fuel system
    • Electronic fuel metering valve
    • Throttle plate, 24V DC actuator, controlled by GECM
    • Fuel system is sized for 31.5 to 47.2 MJ/NM3 dry pipeline natural gas with pressure of 4.5 to 34.5KPa to the engine fuel control valve

    • SR4B
    • Caterpillar's Digital Voltage Regulator (CDVR) with 3-phase sensing and KVAR/PF control
    • Reactive droop
    • Bus bar connections
    • Winding temperature detectors
    • Anti-condensation space heater

    • 24V starting motors
    • Battery with cables and rack(shipped loose)
    • Battery disconnect switch
    • 60A, 24V charging alternator (standard on 60Hz 1800 rpm only)

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

    G3516E Optional Equipment

    Air Inlet
    • Mounting stand
    • Air cleaner with preleaner

    Control Panels
    • Local alarm module
    • Remote annuciator
    • Remote Communications Module (PL1000T, PL1000E)

    • Coolant level drain line with valves, fan with guard
    • Inlet/Outlet connections

    • Flange
    • Exhaust expander

    Fuel System
    • Fuel filter
    • Gas pressure regulator

    • Medium and high voltage generators and attachment
    • Low voltage extension box
    • Cable access box

    • Crankcase explosion relief valve
    • Engine barring group

    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