G3516H 2027kW

Gas Generator Sets G3516H

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Key Specs

Continuous Rating
2027 / 2007 ekW @ 1.0pf
2027 / 2007 ekW @ 1.0pf
Fuel Type
Natural Gas, Hydrogen Blend (up to 25%)
Natural Gas, Hydrogen Blend (up to 25%)
Maximum Electrical Efficiency


1419 - 2027 kW Gas Generator

From natural gas to biogas, coal mine gases, or hydrogen fuel blends to support combined heat and power (CHP), emergency power, and local grid support applications, Caterpillar has a wide range of reliable gas power solutions.


Up to 25% hydrogen blended fuel option

Enables operation of up to 25% hydrogen blend (by volume) with pipeline natural gas fuel.

Up to 38% savings on service

Extended maintenance intervals leading to lower service costs

Up to 20% Lower lube oil consumption

Leading to lower service costs and extended maintenance intervals

Product Specifications for G3516H

Continuous Rating 2027 / 2007 ekW @ 1.0pf 2027 / 2007 ekW @ 1.0pf
Fuel Type Natural Gas, Hydrogen Blend (up to 25%) Natural Gas, Hydrogen Blend (up to 25%)
Maximum Electrical Efficiency 45.30% 45.30%
Frequency 50 / 60 Hz 50 / 60 Hz
RPM 1500 rpm 1500 rpm
Engine Model G3516H G3516H
Displacement 4765 in³ 78 l
Aspiration TA TA
Bore 6.7 in 170 mm
Stroke 8.5 in 215 mm
Compression Ratio 12.1 12.1
Fuel System Natural Gas Natural Gas
Length 291 in 7395 mm
Width 84 in 2139 mm
Height 95 in 2402 mm
Dry Weight - Genset 40384 lb 18315 kg

G3516H Standard Equipment

Control Panels

  • EMCP4.3

Air Inlet

  • Package Mounted Air Cleaner with service indicator
  • Two-element single-stage air cleaner with enclosure and service indicator


  • Jacket water and SCAC driven thermostats
  • ANSI Class 150/DN custom flange connections for JW inlet and outlet
  • Engine driven water pumps for jacket water and after cooler
  • 2nd stage SCAC-Cat Flange


  • Center section cooled turbocharger with Cat flanged outlet
  • Individual exhaust port and turbocharger outlet wired to integrated temperature sensing module (ITSM) with GCEM providing alarms and shutdowns
  • Dry exhaust manifolds, insulated and shielded
  • Cat-flanged face outlet on turbocharger

Fuel System

  • Throttle plate, 24V DC actuator, controlled by GECM
  • Electronic fuel metering valve
  • Fuel system is sized for 31.5 to 47.2 MJ/NM3 dry pipeline natural gas with pressure of 10.2 to 34.5KPa to the engine fuel control valve

Ignition System

  • Electronic Ignition System (controlled by ADEM A4)
  • Individual Cylinder Detonation Sensitive Timing (DST)


  • Permanent Magnet Excitiation
  • Anti-condensation space heater
  • Winding temperature detectors
  • SR5
  • Reactive Droop
  • Caterpillar's Digital Voltage Regulator (CDVR) with 3-phase sensing and KVAR/PF control


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

Governing System

  • ADEM A4 4-20mA (0-5V) Speed Input


  • 24V starting motors

G3516H Optional Equipment

Air Inlet

  • Mounting brackets and piping
  • Air cleaner with precleaner
  • Heavy Duty air cleaner with precleaner

Circuit Breakers

  • No UV trip or package mounted CB Wiring
  • Frame Mounting
  • MP-Frame 3 Pole Bottom Cable Entry or MP- Frame 6 Pole Bottom Cable Entry
  • 4000A, 3-Pole IEC Rated
  • 2500/3000/3200A or 4000/5000A Neutral Current Transformer Automatic Selection
  • Lower & Upper Covers, Extension Box Roof Cover
  • Busbar Mounting
  • 4000A, 3-Pole UL Rated

Control Panels

  • Remote monitoring software
  • Discrete I/O Module, 12 Digital Inputs, 8 'Form C' Relay
  • Remote RS485, 32-light Annunciator
  • Cat Connect: Ehternet, Satellite, Cell Telematics
  • Cross-Current Compensation Current Transformer-- 8.7/15 kV Classes
  • RTD Module
  • Local/Remote PC Monitorring
  • 16 Point/32 Light Annunciator with NFPA99-110/CSA282 Configuration
  • Remote Monitoring & Control
  • Synchronizing module
  • Local alarm module


  • Jacket water coolant heater
  • Inlet/Outlet connections


  • Flange
  • Muffler and spark-arresting muffler with ANSI companion flanges
  • Elbow


  • Manual voltage control
  • Generator air filter
  • Low voltage extension box
  • Medium and high voltage generators and attachment
  • Cable access box
  • Bearing temperature detectors


  • 24V Battery Charger
  • 60A, 24V charging alternator (requires engine driven pumps)


  • US AID emblem
  • Special paint order
  • Battery diconnect switch
  • Digital diagnostic tool
  • Tool set
  • Battery with cables and rack (shipped loose)

Grid Code Compliance

  • 60 Hz: USA
  • 50 Hz: Germany, Great Britain, Belgium, Romania, Italy, Ireland, Poland, Netherlands, Spain, France, and European Standard

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