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Gas Compression Engines

Oil and gas producers have relied on Caterpillar since the industry's earliest days. For 60 years, we've powered the petroleum business on land. Now we go with it onto the ocean, hundred of miles out, thousands of feet down.

G3612 Gas Compression Engine

G3600 engines provide a wide range of power options to fit your gas compression application. G3600 engines bring the highest uptime in the industry and long operating intervals between overhaul. Operators that use G3600 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 engines include centralized gathering stations, gas processing, transmissions, and storage applications. Cat G3612 gas engine with ratings: 1647-2822 bkW (3550-3785 bhp) @ 1000 rpm. NSPS site compliant capable.

Product Details

Engine Specifications

Minimum Rating 2647 bkW
Maximum Rating 2822 bkW
Emissions NSPS Site Compliant Capable
Displacement 254 L
Compression Ratio 9.2:1
Aspiration Turbocharged-Aftercooled
Rotation (from flywheel end) Counterclockwise
Flywheel Teeth 255
Weight (dry) 25084 kg
Oil Change Interval 5000 hours
Ignition, Protection ADEM™ A3
Stroke 300 mm
Bore 300 mm

Capacity for Liquids

Cooling System 734 L
Lube Oil System (refill) 1030 L
  • Air Inlet System
    •  Air cleaner — standard dutyInlet air adapter
  • Control System
    •  A3 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 pump
    •  Aftercooler water thermostats and housing
    •  Single-stage aftercooler
  • Exhaust System
    •  Dry wrapped exhaust manifolds
    •  Vertical outlet adapter
  • Dry wrapped exhaust manifolds
    • Vertical outlet adapter
      • Flywheel & Flywheel Housing
        •  SAE standard rotation
      • Fuel System
        •  Gas admission valves — electronically controlled fuel supply pressure
      • Ignition System
        •  A3 control system — senses individual cylinder detonation and controls individual cylinder timing
      • A3 control system — senses individual cylinder detonation and controls individual cylinder timing
        • Instrumentation
          •  LCD display panel — monitors engine parameters and displays diagnostic codes
        • Lube System
          •  Crankcase breathers — top mounted
          •  Oil cooler
          •  Oil filter
          •  Oil pan drain valve
        • Mounting System
          •  Engine mounting feet (six total)
        • Engine mounting feet (six total)
          • Protection System
            •  Electronic shutoff system with purge cycle
            •  Crankcase explosion relief valves
            •  Gas shutoff valve
          • Electronic shutoff system with purge cycle
            • Crankcase explosion relief valves
              • Gas shutoff valve
                • Starting System
                  •  Air starting system
                • Air starting system
                  • General
                    •  Paint — Cat yellow
                    •  Vibration dampers
                  • 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
                  • Flexible bellows adapters
                    • Exhaust expander
                      • Weld flanges
                        • Fuel System
                          •  Fuel filter
                          •  Gas pressure regulator
                          •  Flexible connection
                          •  Low energy fuel system
                          •  Corrosive gas fuel system
                        • Fuel filter
                          • Gas pressure regulator
                            • Flexible connection
                              • Low energy fuel system
                                • Corrosive gas fuel system
                                  • Ignition System
                                    •  CSA certification
                                  • Instrumentation
                                    •  Remote data monitoring and speed control
                                    •  Compatible with Cat Electronic Technician (ET) and Data View
                                    •  Communication Device — PL1000T/E
                                    •  Display panel deletion is optional
                                  • Remote data monitoring and speed control
                                    • Compatible with Cat Electronic Technician (ET) and Data View
                                      • Communication Device — PL1000T/E
                                        • Display panel deletion is optional
                                          • Lube System
                                            •  Air or electric motor-driven prelube
                                            •  Duplex oil filter
                                            •  LH or RH service
                                            •  Lube oil makeup system
                                          • Mounting System
                                            •  Mounting plates (set of six)
                                          • Power Take-Offs
                                            •  Front stub shafts
                                          • Starting System
                                            •  Air pressure reducing valve
                                            •  Natural gas starting system
                                          • General
                                            •  Engine barring device
                                            •  Damper guard
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