G3608 Gas Compression Engines

Gas Compression Engines G3608 A4

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Key Specs

Maximum Rating
2750 BHP
2051 bkW
NSPS Site Compliant Capable
NSPS Site Compliant Capable
10350 in³
169.6 l


G3600 ADEM™4 engines provide a wide range of power options to fit your gas compression application. G3600 ADEM™4 engines bring the highest uptime in the industry and long operating intervals between overhaul. Operators that use G3600 ADEM™4 engines in their fleet enjoy virtually no unscheduled downtime, the right power for their application, the lowest operating costs, and emissions compliance. Ideal applications for G3600 ADEM™4 engines include centralized gathering stations, gas processing, transmissions, and storage applications. Cat G3608 ADEM™4 Gen 1 gas engine with ratings: 1864 bkW (2500 bhp) @ 1000 rpm and Cat G3608 ADEM™4 Gen 2 gas engine ratings : 2051 bKW (2750 bhp) @ 1000 rpm. NSPS site compliant capable.

Product Specifications for G3608 A4

Maximum Rating 2750 BHP 2051 bkW
Emissions NSPS Site Compliant Capable NSPS Site Compliant Capable
Displacement 10350 in³ 169.6 l
Minimum Rating 2500 BHP 1864 bkW
Compression Ratio Gen 1 (9.2:1) Gen 2 (7:6:1) Gen 1 (9.2:1) Gen 2 (7:6:1)
Aspiration Turbocharged-Aftercooled Turbocharged-Aftercooled
Rotation from Flywheel End Counterclockwise Counterclockwise
Flywheel Teeth 255 255
Weight - Dry 46500 lb 21092 kg
Oil Change Interval 5000 hours 5000 hours
Ignition, Protection ADEM™4 ADEM™4
Stroke 11.8 in 300 mm
Bore 11.8 in 300 mm
Cooling System 140 gal (US) 530 l
Lube Oil System - Refill 241 gal (US) 912 l

G3608 A4 Standard Equipment

Air Inlet System

  • Air cleaner — standard-duty
  • Inlet air adapter

Control System

  • A4 control system — provides electronic governing integrated with air/fuel ratio control and individual cylinder ignition timing control

Cooling System

  • Jacket water pump
  • Jacket water thermostats and housing
  • Aftercooler/oil cooler pump
  • Aftercooler/oil cooler thermostats and housing
  • Two-stage aftercooler
  • Jacket water heater connections
  • Standard ANSI connections

Exhaust System

  • Dry wrapped exhaust manifolds
  • Vertical outlet adapter

Flywheels & Flywheel Housings

  • SAE standard rotation

Fuel System

  • Gas admission valves -- electronically controlled fuel supply pressure

Ignition System

  • A4 control system -- senses individual cylinder detonation and controls individual cylinder timing

Lube System

  • Crankcase breather — top mounted
  • Oil cooler
  • Oil filter
  • Oil pan drain valves

Mounting System

  • Engine mounting feet (four total)

Protection System

  • Electronic shutoff system with purge cycle
  • Crankcase explosion relief valves
  • Gas shutoff valve

Starting System

  • Air starting system


  • Paint — Cat yellow
  • Vibration damper

G3608 A4 Optional Equipment

Air Inlet System

  • Heavy-duty air cleaner — with precleaners
  • Heavy-duty air cleaner with rain protection

Charging System

  • Charging alternators

Control System

  • Custom control system software — available for nonstandard ratings, field programmable using flash memory

Cooling System

  • Expansion tank
  • Flexible connections
  • Jacket water heater

Exhaust System

  • Flexible bellows adapters
  • Exhaust expander
  • Weld flanges

Fuel System

  • Fuel filter
  • Gas pressure regulator
  • Flexible connection


  • LCD display panel
  • Color HMI Display
  • Remote data monitoring and speed control
  • Compatible with Cat Electronic Technician (ET) and Data View
  • Modbus and Ethernet capable

Lube System

  • Air or electric motor-driven prelube
  • Duplex oil filter

Mounting System

  • Mounting plates (set of six)

Power Take-Offs

  • Front stub shafts

Starting System

  • Air pressure reducing valve


  • Engine barring device
  • Dual vibration damper with guard

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G3608 Gas Compression Engines

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