G3520B LE Gas Petroleum Engine

G3520B

Features At A Glance

Engine Design
Ultra Lean Burn Technology (ULB)
Emissions
Advanced Digital Engine Management
Full Range of Attachments
Testing
Gas Engine Rating Pro
Product Support Offered Through Global Cat Dealer
Over 80 Years of Engine Manufacturing Experience
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Product Specifications for G3520B

Engine Specifications

G3520B 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

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

G3520B 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

Instrumentation

  • 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

General

  • Special paint
  • Torsional vibration analysis

EU Certification

  • EEC DOI certification

Support

  • Factory commissioning

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