G3520

Overview

The Cat® G3520 Industrial Gas Engines are offered in the following ratings: 1104 bkW (1480 bhp) @ 1200 rpm and 1286 bkW (1725 bhp) @ 1400 rpm. These ratings are NSPS site compliant capable with customer-supplied aftertreatment. For specific emission information, please consult your local Cat Dealer.

 

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Power Rating
Minimum Power1104kW
Maximum Power1286kW
Frequency1200-1400 rpm
General
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)
Weight - Net Dry11168 kg (24622 lb)
Length4180 mm (164 in)
Width1755 mm (69 in)
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
General
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
Engine Design
  • 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
Ultra Lean Burn Technology (ULB)
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
Advanced Digital Engine Management
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.
Full Range of Attachments
Large variety of factory-installed engine attachments reduces packaging time.
Quality
Every Cat engine is manufactured to stringent quality standards in order to assure customer satisfaction.
World-class Product Support Offered Through Global Cat Dealer Network
  • 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
World-class Product Support Offered Through Global Cat Dealer Network
  • 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
Specifications
Power Rating
Minimum Power1104kW
Maximum Power1286kW
Frequency1200-1400 rpm
General
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)
Weight - Net Dry11168 kg (24622 lb)
Length4180 mm (164 in)
Width1755 mm (69 in)
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
General
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
Benefits & Features
Engine Design
Ultra Lean Burn Technology (ULB)
Advanced Digital Engine Management
Full Range of Attachments
Quality
World-class Product Support Offered Through Global Cat Dealer Network
World-class Product Support Offered Through Global Cat Dealer Network
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