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G3508A Standard Equipment

Air Inlet
  • Package Mounted Air Cleaner with service indicator

Control Panels
  • EMCP II+

  • Single stage aftercooler with mechanical pump, thermostats
  • Combined jacket water and oil cooler circuit with mechanical pump and thermostats

  • Water cooled exhaust
  • Individual exhaust port thermocouples

Fuel system
  • Natural gas rated(31.5 to 47.2 MJ/NM3)
  • High pressure fuel system
  • High pressure gas pressure regulator

  • SR4B
  • Caterpillar's Digital Voltage Regulator (CDVR) with 3-phase sensing and KVAR/PF control
  • Bus bar connections
  • Anti-condensation space heater
  • Permanent magnet excitation
  • Form Would Stator with Coastal Insulation Protection
  • Platium stator winding temperature detectors

  • 24V starting motors
  • Battery disconnect switch

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

G3508A Optional Equipment

Air Inlet
  • Air inlet adapters

Control Panels
  • Local alarm module
  • Remote annuciator
  • Remote Communications Module (PL1000T, PL1000E)
  • Control panel removal

  • Raw water aftercooler
  • Cleanable aftercooler core

  • Flange
  • Exhaust expander
  • Elbow
  • Flexible fitting

Fuel System
  • Fuel filter
  • Propane and associated gas fuel ratings
  • Gas shutoff valve

  • Low voltage extension box
  • Cable access box
  • Bearing temperature detectors
  • European bus bar
  • Generator air filter
  • Space heater shutoff relay

  • Battery charger
  • Oversized battery
  • Jacket water heater
  • Battery with cable and rack (shipped loose)
  • Dual starter

  • Crankcase explosion relief valve
  • Engine barring group
  • EEC D.O.I and other certifications


From natural gas-fueled combined heat and power (CHP) systems and emergency power for facilities, to renewable biogas energy to support the local grid, or electricity generated from coal mine gases, Caterpillar has a wide range of reliable gas power solutions.

Gas Generator Sets Specification

Maximum Continuous Rating 485 ekW 485 ekW Less
Fuel Type Natural Gas, Biogas Natural Gas, Biogas Less
Maximum Electrical Efficiency 37.30% 37.30% Less
Maximum Standby Rating 485 485 Less
Frequency 50/60Hz 50/60Hz Less
RPM 1200/1500rpm 1200/1500rpm Less

Engine Specifications

Aspiration TA TA Less
Bore 6.7 in 170.0 mm Less
Displacement 2105.0 in³ 33.0 l Less
Engine Model 3508A 3508A Less
Stroke 7.5 in 190.0 mm Less

Generator Set Dimensions

Length 150.0 in 3821.0 mm Less
Width 62.0 in 1570.0 mm Less
Height 79.0 in 2012.0 mm Less
Dry Weight - Genset 16301.0 lb 7393.0 kg Less

Field proven in a wide range of apllications worldwide

Over 1400 G3508 gensets installed