• Banner
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 A4 Gas Compression Engine

G3600 A4 engines provide a wide range of power options to fit your gas compression application. G3600 A4 engines bring the highest uptime in the industry and long operating intervals between overhaul. Operators that use G3600 A4 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 A4 engines include centralized gathering stations, gas processing, transmissions, and storage applications. Cat G3612 A4 gas engine with ratings: 2796-2983 bkW (3750-4000 bhp) @ 1000 rpm. NSPS site compliant capable.

Product Details

Engine Specifications

Minimum Rating 2796.0 bkW
Maximum Rating 2983.0 bkW
Emissions NSPS Site Compliant Capable
Displacement 254.0 L
Compression Ratio 9.2:1
Aspiration Turbocharged-Aftercooled
Rotation (from flywheel end) Counterclockwise
Flywheel Teeth 255
Weight (dry) 26535.0 kg
Oil Change Interval 5000 hours
Ignition, Protection ADEM™ A3
Stroke 300.0 mm
Bore 300.0 mm

Capacity for Liquids

Cooling System 734.0 L
Lube Oil System (refill) 1030.0 L
  • 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 pump
    •  Aftercooler water thermostats and housing
    •  Two-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
      • 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 breathers — top mounted
          •  Oil cooler
          •  Oil filter
          •  Oil pan drain valve
        • Mounting System
          •  Engine mounting feet (six total)
        • Protection System
          •  Electronic shutoff system with purge cycle
          •  Crankcase explosion relief valves
          •  Gas shutoff valve
        • Starting System
          •  Air starting system
        • General
          •  Paint — Cat yellow
          •  Vibration dampers
        • Air Inlet System
          •  Heavy-duty air cleaner with precleaners and rain protection
        • Heavy-duty air cleaner with precleaners and rain protection
          • Charging System
            •  35 Amp & 65 Amp chargin alternators - CSA approved
          • 35 Amp & 65 Amp chargin alternators - CSA approved
            • Exhaust System
              •  Flexible bellows adapters
              •  Exhaust expander
              •  Weld flanges
            • Fuel System
              •  Fuel filter
              •  Gas pressure regulator
              •  Flexible connection
              •  Low energy fuel system
              •  Corrosive gas fuel system
            • Instrumentation
              •  Remote data monitoring and speed control
              •  Compatible with Cat Electronic Technician (ET) and Data View
              •  LCD display panel
              •  Color HMI display
              •  Modbus and Ethernet capable
            • Lube System
              •  Air or electric motor-driven prelube
              •  Duplex oil filter
              •  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
            • Air pressure reducing valve
              • Natural gas starting system
                • General
                  •  Engine barring device
                  •  Damper guard
                • Engine barring device
                  • Damper guard
                    Catepillar Equipments