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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 G3616 gas engine with ratings: 3531-3762 bkW (4735-5045 bhp) @ 1000 rpm. NSPS site compliant capable.

Engine Specifications

Minimum Rating 4735.0 BHP 3531.0 bkW Less
Maximum Rating 5045.0 BHP 3762.0 bkW Less
Emissions NSPS Site Compliant Capable NSPS Site Compliant Capable Less
Displacement 20698.0 in³ 339.18 l Less
Compression Ratio 9.2:1 9.2:1 Less
Aspiration Turbocharged-Aftercooled Turbocharged-Aftercooled Less
Rotation from Flywheel End Counterclockwise Counterclockwise Less
Flywheel Teeth 255 255 Less
Weight - Dry 65900.0 lb 29891.0 kg Less
Oil Change Interval 5000 hours 5000 hours Less
Ignition, Protection ADEM™ A3 ADEM™ A3 Less
Stroke 11.8 in 300.0 mm Less
Bore 11.8 in 300.0 mm Less

Capacity for Liquids

Cooling System 257.0 gal (US) 973.0 l Less
Lube Oil System - Refill 351.0 gal (US) 1329.0 l Less


Meets U.S. EPA Spark Ignited Stationary NSPS Emissions for 2010/11 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

- High-strength pan and rails for excellent mounting and stability - Side covers on block allow for inspection of internal components

Advanced Digital Engine Management

ADEM A3 engine management system integrates speed control, air/fuel ratio control, and ignition/detonation controls into a complete engine management system. ADEM A3 has improved: user interface, display system, shutdown controls, and system diagnostics.

Full Range of Attachments

Large variety of factory-installed engine attachments reduces packaging time.


Every engine is full-load tested to ensure proper engine performance

Gas Engine Rating Pro

GERP is a PC-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.

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 60 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

Web Site

For all your petroleum power requirements, visit www.catoilandgasinfo.com.

Web Site

For all your petroleum power requirements, visit www.catoilandgasinfo.com.

G3616 Standard Equipment

Air Inlet System
  • Heavy-duty air cleaner with precleaners
  • Air cleaner — standard duty
  • Inlet air adapter
  • Heavy-duty air cleaner with rain protection

Cooling System
  • Jacket water pump
  • Jacket water thermostats and housing
  • Expansion tank
  • Aftercooler pump
  • Aftercooler water thermostats and housing
  • Flexible connections
  • Single-stage aftercooler
  • Jacket water heater

Exhaust System
  • Dry wrapped exhaust manifolds
  • Flexible bellows adapters
  • Vertical outlet adapter
  • Exhaust expander
  • Weld flanges

Flywheel & Flywheel Housing
  • SAE standard rotation

  • LCD display panel — monitors engine parameters and displays diagnostic codes
  • 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
  • Crankcase breathers — top mounted
  • Oil cooler
  • Oil filter
  • Oil pan drain valve
  • Air or electric motor-driven prelube
  • Duplex oil filter
  • LH or RH service
  • Lube oil makeup system

Mounting System
  • Engine mounting feet (six total)
  • Mounting plates (set of six)

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

Starting System
  • Air starting system
  • Air pressure reducing valve
  • Natural gas starting system

  • Paint — Cat yellow
  • Vibration dampers
  • Engine barring device
  • Damper guard

G3616 Optional Equipment

Charging System
  • Charging alternators

Control System
  • A3 control system — provides electronic governing integrated with air/fuel ratio control and individual cylinder ignition timing control
  • Custom control system software — available for nonstandard ratings, field programmable using flash memory

Fuel System
  • Fuel filter
  • Gas admission valves — electronically controlled fuel supply pressure
  • Gas pressure regulator
  • Flexible connection
  • Low energy fuel system
  • Corrosive gas fuel system

Ignition System
  • A3 control system — senses individual cylinder detonation and controls individual cylinder timing
  • CSA certification

Power Take-Offs
  • Front stub shafts