Industrial Oem

  • Specs Summary
  • Bore
    170 mm (6.7 in)
  • Stroke
    190 mm (7.5 in)
  • Displacement
    34.5 L (2105 in³)
  • Minimum Power
    524 bhp (391 bkW)

Cat® G3508 Industrial Gas Engine

The Cat® G3508 Industrial Gas Engine is offered in ratings ranging from 391 bkW (524 bhp) @ 1200 rpm and 500-514 bkW (670-690 bhp) @ 1400 rpm. These ratings are NSPS site compliant capable with customer-supplied aftertreatment. For specific emission information, please consult your local Cat Dealer.

General

  • Bore 170 mm (6.7 in)
  • Stroke 190 mm (7.5 in)
  • Displacement 34.5 L (2105 in³)
  • Aspiration Turbocharged Aftercooled (TA)
  • Engine Configuration Engine - Continuous

Power Rating

  • Minimum Power 524 bhp (391 bkW)
  • Maximum Power 690 bhp (514 bkW)
  • Frequency 1200-1400 rpm

Engine Dimensions (Approximate. Final dimensions dependent on selected options)

  • Weight, Net Dry 3941 kg (8688 lb)
  • Height 2131 mm (84 in)
  • Width 2014 mm (79 in)
  • Length 2522 mm (99 in)

Standard Equipment

Air Inlet System

  • Remote air inlet adapters

Charging System

  • Battery chargers

Cooling System

  • Jacket water thermostats and housing — full opentemperature 98°C (208°F)
  • Jacket water pump — gear driven, centrifugal,non-self-priming
  • Aftercooler water pump — gear driven, centrifugal,non-self-priming
  • Aftercooler core for sea-air atmosphere
  • Aftercooler thermostats and housing — full opentemperature 35°C (95°F)
  • Aftercooler — raw water, cleanable

Exhaust System

  • Exhaust manifolds — watercooled

Flywheels & Flywheel Housings

  • SAE No. 00 flywheel
  • SAE No. 00 flywheel housing
  • SAE standard rotation

Fuel System

  • Gas pressure regulator
  • Natural gas carburetor
  • Fuel gas shut-off valve (24V DC)

Instrumentation

  • Advisor panel
  • Advisor interconnect harness

Lubrication System

  • Crankcase breathers — top mounted
  • Oil cooler
  • Oil filter — RH
  • Oil pan — shallow
  • Oil sampling valve
  • Turbo oil accumulator

Mounting System

  • Rails, engine mounting

Power Take-Offs

  • Front housing — two-sided
  • Front lower LH accessory drive

Protection System

  • Electronic shutoff system
  • Gas shutoff valve

General

  • Paint — Cat yellow
  • Vibration damper and guard

Optional Equipment

Air Inlet System

  • Remote air inlet adapters

Charging System

  • Battery chargers

Cooling System

  • Aftercooler core
  • Thermostatic valves
  • Connections
  • Expansion and overflow tank
  • Water level switch gauge

European Certifications

  • European Union certifications

Exhaust System

  • Flexible fittings
  • Elbows
  • Flanges
  • Flange and exhaust expanders
  • Mufflers

Fuel System

  • Fuel filter

Instrumentation

  • Customer communication modules

Lubrication System

  • Oil filters — duplex
  • Oil pan drain
  • Oil level regulator
  • Sump pumps
  • Lubricating oil

Mounting System

  • Rails
  • Vibration isolators

Power Take-Offs

  • Auxiliary drive shaft
  • Auxiliary drive pulleys
  • Front stub shaft
  • Pulleys

Protection System

  • Gas valve
  • Explosion relief valves

Starting System

  • Air pressure regulator
  • Air silencer
  • JW heaters
  • Battery sets (24-volt dry)
  • Battery accessories

General

  • Flywheel guard removal
  • Engine barring group
  • Premium 8:1 pistons