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Maximum Rating2065 BHP (1540 bkW)
EmissionsNSPS Site Compliant Capable
Displacement7762 in³ (127.2 l)
Minimum Rating1900 BHP (1417 bkW)
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 G3606 ADEM™4 Gen 1 gas engine with ratings: 1417bkW (1900 bhp) @ 1000 rpm and ADEM™4 Gen 2 gas engine ratings: 1540 bKW (2065 bhp) @ 1000 rpm.


Maximum Rating2065 BHP (1540 bkW)
EmissionsNSPS Site Compliant Capable
Displacement7762 in³ (127.2 l)
Minimum Rating1900 BHP (1417 bkW)
Compression Ratio9.2:1 Gen 1 (7:6:1 Gen 2)
Rotation from Flywheel EndCounterclockwise
Flywheel Teeth255
Weight - Dry36883 lb (16730 kg)
Cooling System124 gal (US) (470 l)
Lube Oil System - Refill187 gal (US) (708 l)
Oil Change Interval5000 hours
Ignition, ProtectionElectronic (ADEM™ A4)
Stroke11.8 in (300 mm)
Bore11.8 in (300 mm)

Benefits and Features

Meets U.S. EPA Spark Ignited Stationary NSPS Emissions for 2010 with the use of an oxidation catalyst

Lean-burn engines operate with large amounts of excess air. The excess air absorbs heat during combustion reducing the combustion temperature and pressure, greatly reducing levels of NOx. Lean-burn design also provides longer component life and excellent fuel consumption.

Includes engine mounted thermostats, compress oil cooler connections, jacket water and lube oil heater connections.

ADEM4 engine management system integrates speed control, air/fuel ratio control, and ignition/detonation controls into a complete engine management system. ADEM4 has improved: user interface, display system, shutdown controls, and system diagnostics.

GERP is a web-based program designed to provide site performance capabilities for Cat® natural gas engines for the gas compression industry. GERP provides engine data for your site's altitude, ambient temperature, fuel, engine coolant heat rejection, performance data, installation drawings, spec sheets, and pump curves.

More than 2,200 dealer outlets Cat factory-trained dealer technicians service every aspect of your petroleum engine Cat parts and labor warranty Preventive maintenance agreements available for repairbefore-failure options S•O•SSM program matches your oil and coolant samples against Caterpillar set standards to determine: - Internal engine component condition - Presence of unwanted fluids - Presence of combustion by-products - Site-specific oil change interval

Over 80 years of natural gas engine production Ownership of these manufacturing processes enables Caterpillar to produce high quality, dependable products - Cast engine blocks, heads, cylinder liners, and flywheel housings - Machine critical components - Assemble complete engine

For all your petroleum power requirements, visit

Standard Equipment

  • Air cleaner — standard-duty inlet air adapter
  • A4 control system — provides electronic governing integrated with air/fuel ratio control and individual cylinder ignition timing control
  • Electrical system and instrumentation certified for Class I, Division 2, Group D hazardous location. Includes entire ADEM A4 system and optional control panel.
  • 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
  • Dry exhaust manifolds
  • Single vertical outlet adapter
  • Stainless steel encapsulated insulation
  • SAE standard rotation
  • Gas admission valves -- electronically controlled fuel supply pressure
  • A4 control system — senses individual cylinder detonation and controls individual cylinder timing
  • Crankcase breathers (top mounted)
  • Oil cooler
  • Oil filter
  • Oil pan drain valves -- front and rear
  • Engine mounting feet (four total)
  • Electronic shutoff system with purge cycle
  • Crankcase explosion relief valves
  • Gas shutoff valve
  • Air starting system
  • Paint — Cat yellow
  • Vibration dampers

Optional Equipment

  • Heavy-duty air cleaner with precleaners
  • 35 Amp & 65 Amp charging alternators – CSA approved
  • Flexible bellows adapters
  • Exhaust expander
  • Weld flanges
  • Fuel filter
  • Gas pressure regulator
  • Flexible connection
  • LCD display panel
  • Remote data monitoring and speed control
  • Color HMI display
  • Compatible with Cat® Electronic Technician (ET) and Data View
  • Modbus and Ethernet capable
  • Air or electric motor-driven prelube
  • Duplex oil filter
  • RH Service
  • Lube oil makeup system
  • Mounting plates (set of four)
  • Extra mounting feet (set of two)
  • Extra mounting plates (set of two)
  • Front stub shafts
  • Air pressure reducing valve
  • Engine barring device
  • Damper guard