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.

Bore170 mm (6.7 in)
Stroke190 mm (7.5 in)
Displacement86.3 L (5263 in³)
Engine ConfigurationEngien - Continuous
Power Rating
Minimum Power1480.0 bhp
Maximum Power1725.0 bhp
Frequency1200-1400 rpm
Engine Dimensions (Approximate. Final dimensions dependent on selected options)
Weight, Net Dry11168 kg (24622 lb)
Height2385 mm (94 in)
Width1755 mm (69 in)
Length4180 mm (164 in)

Ratings Are Nsps Site Compliant Capable With Customer-supplied Aftertreatment. For Specific Emission Information, Please Consult Your Local Cat Dealer.

  • 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 S•o•ssm 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

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



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