G3612 A4 Gas Compression Engine

    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 G3612 ADEM™4 Gen 1 gas engine with ratings: 2796 bkW (3750 bhp) @ 1000 rpm and Cat G3612 ADEM™4 Gen 2 gas engine with ratings: 2015 bKW (2750bhp) @ 1000 rpm. NSPS site compliant capable.​


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

      Lean Burn Engine Technology

      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.

      Ease of Operation

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

      Advanced Digital Engine Management

      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.

      Gas Engine Rating Pro

      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.https://gerp.cat.com

      Product Support Offered Through Global Cat Dealer

      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 Engine Manufacturing Experience

      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 www.cat.com/oilandgas

      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 pump
      • Aftercooler water thermostats and housing
      • Two-stage aftercooler
      Exhaust System
      • 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
      • 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
      • Paint — Cat yellow
      • Vibration dampers

      Additional information

      Offering Type

      Engine Specifications - Maximum Rating

      3076 bkW ( 4125 BHP )

      Engine Specifications - Emissions

      NSPS Site Compliant Capable

      Engine Specifications - Displacement

      254.0 l ( 15528.0 in³ )

      Engine Specifications - Minimum Rating

      2796 bkW ( 3750 BHP )

      Engine Specifications - Compression Ratio

      Gen 1 (9.2:1) Gen 2 (7:6:1)

      Engine Specifications - Aspiration


      Engine Specifications - Rotation from Flywheel End


      Engine Specifications - Flywheel Teeth


      Engine Specifications - Weight - Dry

      26535.0 kg ( 58500.0 lb )

      Engine Specifications - Oil Change Interval

      5000 hours

      Engine Specifications - Ignition, Protection


      Engine Specifications - Stroke

      300.0 mm ( 11.8 in )

      Engine Specifications - Bore

      300.0 mm ( 11.8 in )

      Capacity for Liquids - Cooling System

      734.0 l ( 194.0 gal (US) )

      Capacity for Liquids - Lube Oil System - Refill

      1030.0 l ( 272.0 gal (US) )

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