G3612 A4 Gas Compression Engine
THE RUNDOWN
Emissions
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
Website
A number of upgrade kits are available for Cat® G3600 engines. For customers looking to enhance the performance while continuing to meet emissions requirements of their gas compression fleet, consider a Gen 2 Kit and/or the Closed Crankcase Ventilation (CCV) System retrofit.
Find detailed information on each upgrade, including features, benefits, and applicable engine ratings using the link below.
Engine Specifications
| Maximum Rating | 4125BHP |
| Rated Speed | 1000rpm |
| Emissions | Lean Burn: EPA NSPS Site Compliant Capable with Customer Supplied Aftertreatment, 0.3 g and 0.5 g/bhp-hr NOx |
| Minimum Rating | 3750BHP |
| Compression Ratio | Gen 1 (9.2:1) Gen 2 (7:6:1) |
| Aspiration | Turbocharged-Aftercooled |
| Rotation from Flywheel End | Counterclockwise |
| Displacement | 15528.0in³ |
| Flywheel Teeth | 255 |
| Oil Change Interval | 5000 hours |
| Ignition, Protection | ADEM™4 |
| Stroke | 11.8in |
| Bore | 11.8in |
| Length | 195.09in |
| Width | 102.28in |
| Height | 129.10in |
| Weight - Dry | 58500lb |
Capacity for Liquids
| Cooling System | 194.0gal (US) |
| Lube Oil System - Refill | 272.0gal (US) |
Standard Equipment
Air Inlet System
- Air Cleaners
- Air cleaner — standard duty Inlet air adapter
Control System
- ADEM 4
Cooling System
- ANSI Class 150 4 inch Flange (outlet water connection)
- ANSI Class 150 6 inch Flange (Inlet Water connection)
- Engine driven Water pump
- Water Jacket Outlet Regulator 88° C
Engine Rating
- Engine rating and speed selection
Exhaust System
- Hard Heat Sheilded Exhaust Manifolds - SAE Standard
- Vertical Exhaust Outlet
Flywheel & Flywheel Housing
- Flywheel including ring gear for starting. SAE Standard
Flywheel and Flywheel Housing
- Engine Barring Device
Fuel System
- Fuel Filter
- Gas Pressure Regulator
General
- Paint
- Wood Skid
Instrumentation
- Basic HMI Engine Interface
Lube System
- Breathers
- Closed Crankcase Ventilation System
- Front and Rear Oil Drains
- Intermittent Prelube Pump
- Oil Cooler
- Oil Cooler
- Oil Pan
- Oil Supply line
Mounting System
- Six Engine Mounting Feet
Power Take-offs
- Damper and Damper Guard
Protection System
- Crankcase Explosion Relief Valves
Starting System
- Air Starting Motor
Telematics System
- Cat Connect Technology
Cat Connect Technology
- ANSI Class 150 2 inch Flange ( Customer Connect)
Optional Equipment
Charging System
- Alternator
Control System
- Software Development
Exhaust System
- Flex EXH Fitting
Fuel System
- Fuel Connections
Genereal
- Language Decals
Lube System
- Lubricating Oil
- Oil Level Regulator
- Air or electric motor-driven prelube
- Duplex oil filter
- RH service
- Lube oil makeup system
Mounting System
- Lifting Eye Exhaust Shield
- Mounting Plates
- Mounting plates (set of six)
Service
- Service Tools
Telematics System
- Cell - Satellite Radio
Telematics
- Product Link Extension Harness
Instrumentation
- LCD display panel
- Color HMI display
- Modbus and Ethernet capable
Power Take-Offs
- Front stub shafts
Starting System
- Air pressure reducing valve
- Natural gas starting system
General
- Engine barring device
- Damper guard
