CG137-12

CG137-12 Gas Engine

Tough and durable, with field-proven head design to maximize time between overhauls. CG137 engines are equipped with ADEM A4 technology that brings performance, uptime, and low operating cost to your operation. CG137 engines meet the most demanding continuous duty gas compression applications with virtually no unscheduled downtime. Ideal applications for CG137-12 engines include gas lift, gas gathering, and wellhead gas compression. Cat CG137-12 gas engine. Ratings: 447 bkW (600 bhp) @ 1800 rpm are NSPS site compliant capable with Caterpillar air-fuel ratio control and aftertreatment.

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Advanced Digital Engine Management

The ADEM A4 system represents the next generation of engine management systems while reducing the number of mechanical components and easing troubleshooting. Features include: • Air/Fuel Ratio Control (AFRC) • Electronic ignition • Electronic governing/speed control • Start/stop logic • Engine protection and monitoring

Full Range of Attachments

Large variety of factory-installed engine attachments reduces packaging time

Gas Engine Rating Pro (GERP)

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.

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 Caterpillar 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 cat.com/oilandgas

Virtual Tours

Standard Equipment

Air Inlet System
  • Air cleaner — single element with service indicator
  • Optional air inlet adapter and rain cap — recommended for weather protection
Control System
  • ADEM A4
  • Class 1, Division 2, Group C&D and Zone 2
Cooling System
  • Jacket water thermostats and housing — full open temperature 98°C (208°F)
  • Jacket water pump — gear driven, centrifugal, non-self-priming
  • Aftercooler water pump — gear driven, centrifugal, non-self-priming
  • Aftercooler core — for treated water and sea air atmosphere
Exhaust System
  • Exhaust manifolds — watercooled
  • Exhaust elbow — dry 203 mm (8 in)
  • Three-way catalyst — 1.0 g NOx and 0.5 g NOx NTE options
Flywheels & Flywheel Housings
  • Flywheel, SAE No. 14 or 18
  • Flywheel housing, SAE No. 0
  • SAE standard rotation
Fuel System
  • Air/fuel ratio control
  • Gas pressure regulator
  • Natural gas carburetor
Lube System
  • Crankcase breather — top mounted
  • Oil cooler
  • Oil filter — RH
  • Oil filler in valve cover, dipstick — RH
Mounting System
  • Engine mounting rails — 254 mm (10 in) industrialtype, entire length
Protection System
  • ADEM A4 protection
  • The following include alarm and shutdown:
  • The following is display only
General
  • Paint, Caterpillar yellow
  • Crankshaft vibration damper and drive pulleys
  • Lifting eyes
  • Cylinder block inspection covers

Additional information

Offering Type

Engine Specifications - Maximum Rating

447.0 bkW ( 600.0 BHP )
Engine Specifications - Emissions

NSPS 2010
Engine Specifications - Displacement

27.0 l ( 1648.0 in³ )
Engine Specifications - Minimum Rating

447.0 bkW ( 600.0 BHP )
Engine Specifications - Compression Ratio

8.3:1
Engine Specifications - Aspiration

Turbocharged-Aftercooled
Engine Specifications - Rotation from Flywheel End

Counterclockwise
Engine Specifications - Flywheel and Flywheel Housing

SAE No. 14 or 18, Flywheel Housing SAE No. 0
Engine Specifications - Flywheel Teeth

136
Engine Specifications - Weight - Dry

2835.0 kg ( 6250.0 lb )
Engine Specifications - Oil Change Interval

750 hours
Engine Specifications - Ignition, Protection

Electronic ADEM A4
Engine Specifications - Air/Fuel Ratio Control

Electronic ADEM A4
Engine Specifications - Stroke

152.4 mm ( 6.0 in )
Engine Specifications - Bore

137.2 mm ( 5.4 in )
Capacity for Liquids - Cooling System

75.0 l ( 20.0 gal (US) )
Capacity for Liquids - Lube Oil System - Refill

170.0 l ( 45.0 gal (US) )

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