New | Cat® G3520, G3520B Industrial Gas Engine

Cat® G3520 and G3520B Industrial Gas Engine. Ratings: 1104 bkW (1480 bhp) @ 1200 rpm and 1286 bkW (1725 bhp) @ 1400 rpm are NSPS site compliant capable with customer-supplied aftertreatment. For specific emission information, please consult your local Cat Dealer.

Power Rating
Minimum Power1480 BHP
Maximum Power1725 BHP
Frequency1200-1400 rpm
Bore170 mm (6.7 in)
Stroke190 mm (7.5 in)
Displacement86.3 L (5263 in³)
Engine ConfigurationEngien - Continuous
Engine Dimensions - Approximate
Height2385 mm (94 in)
Length4180 mm (164 in)
Weight - Net Dry11168 kg (24622 lb)
Width1755 mm (69 in)

  • built On G3500 Le Proven Reliability And Durability
  • ability To Burn A Wide Spectrum Of Gaseous Fuels
  • robust Diesel Strength Design Prolongs Life And Lowers Owning And Operating Costs
  • broad Operating Speed Range At Lower Site Air Densities (high Altitude/hot Ambient Temperatures)
  • higher Power Density Improves Fleet Management
  • quality Engine Diagnostics
  • detonation-sensitive Timing Control For Individual Cylinders

Ulb Technology Uses An Advanced Control System, A Better Turbo Match, Improved Air And Fuel Mixing, And A More Sophisticated Combustion Recipe To Provide: - Lowest Engine-out Emissions - Highest Fuel Efficiency - Improved Altitude And Speed Turndown - Stable Load Acceptance And Load Rejection

Adem A3 Engine Management System Integrates Speed Control, Air/fuel Ratio Control, And Ignition/detonation Controls Into A Complete Engine Management System. Adem A3 Has Improved: User Interface, Display System, Shutdown Controls, And System Diagnostics.

Large Variety Of Factory-installed Engine Attachments Reduces Packaging Time.

Every Cat Engine Is Manufactured To Stringent Quality Standards In Order To Assure Customer Satisfaction.

  • scheduled Maintenance, Including Sossm Sample
  • customer Support Agreements (csa)
  • caterpillar Extended Service Coverage (esc)
  • superior Dealer Service Network
  • extended Dealer Service Network Through The Cat Industrial Service Distributor (isd) Program

  • scheduled Maintenance, Including Sossm Sample
  • customer Support Agreements (csa)
  • caterpillar Extended Service Coverage (esc)
  • superior Dealer Service Network
  • extended Dealer Service Network Through The Cat Industrial Service Distributor (isd) Program

Standard Equipment

Air Inlet System
  • Axial Flow Air cleaner
  • Cleanable
  • Intermediate-duty with service indicator
Control System
  • ADEM A3 with integrated electronic throttle control
  • Control panel
Cooling System
  • Two-stage charge air cooling
  • Thermostats and housing
  • Engine-driven jacket and aftercooler water pump
  • Stainless steel aftercooler cores
Exhaust System
  • Dry exhaust manifolds
  • Dry exhaust elbow
Flywheels and Flywheel Housings
  • SAE No. 00 flywheel
  • SAE No. 00 flywheel housing
  • SAE standard rotation
Fuel System
  • 7-50 psi gas supply
  • Fuel system is sized for 800 to 1200 btu/scf (31.5 to 47.2 MJ/Nm3)
  • Electronic fuel metering valve
  • Gas pressure regulator
  • Gas shutoff valve (GSOV)
Ignition System
  • ADEM A3
Lubrication System
  • Crankcase breather — top mounted
  • Oil cooler
  • Oil filter — RH
  • Oil pan — 143 gal
  • Drain valve
  • Oil sampling valve
  • Turbo oil accumulator
Mounting System
  • Engine mounting rails - 330.2 mm (13 in) industrial-type
Power Take-Offs
  • Front housing — two-sided
  • Front lower LH, RH, and upper RH accessory drives
  • Paint — Cat yellow
  • Crankshaft vibration damper and guard
  • CSA Certification, Class 1 Division 2, Group D - electrical system and instrumentation - includes ADEM A3 and control panel

Optional Equipment

Air Inlet System
  • Round air inlet adaptors
Charging System
  • Charging alternator - CSA approved 24V, 65 A
Cooling System
  • Flexible connections
Exhaust System
  • Flexible fittings
  • Flange and expander
Fuel System
  • Gas filter
  • Communications module
Lubrication System
  • Lubricating oil
  • Oil bypass filter
  • Air prelube pump
Power Take-Offs
  • Front stub shaft
  • Pulleys
  • Double damper
Protection System
  • Explosion relief valves
  • Secondary GSOV
Starting System
  • Air starting motor with controls (90 psi or 150 psi)
  • API B16.3 compliant piping
  • Jacket water heater
  • Barring group
  • Special paint
  • Torsional vibration analysis
EU Certification
  • EEC DOI certification
  • Factory commissioning



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