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SPECS SUMMARY

Minimum Rating600 BHP (447 bkW)
Maximum Rating600 BHP (447 bkW)
EmissionsNSPS 2010
Displacement1648 in³ (27 l)
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.

Specifications

Minimum Rating600 BHP (447 bkW)
Maximum Rating600 BHP (447 bkW)
EmissionsNSPS 2010
Displacement1648 in³ (27 l)
Compression Ratio8.3:1
AspirationTurbocharged-Aftercooled
Rotation from Flywheel EndCounterclockwise
Flywheel and Flywheel HousingSAE No. 14 or 18, Flywheel Housing SAE No. 0
Flywheel Teeth136
Weight - Dry6250 lb (2835 kg)
Cooling System20 gal (US) (75 l)
Lube Oil System - Refill45 gal (US) (170 l)
Oil Change Interval750 hours
Ignition, ProtectionElectronic ADEM A4
Air/Fuel Ratio ControlElectronic ADEM A4
Stroke6 in (152.4 mm)
Bore5.4 in (137.2 mm)

Benefits and Features

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

Large variety of factory-installed engine attachments reduces packaging time

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.

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 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

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

Standard Equipment

  • Air cleaner — single element with service indicator
  • Optional air inlet adapter and rain cap — recommended for weather protection
  • ADEM A4
  • Class 1, Division 2, Group C&D and Zone 2
  • 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 manifolds — watercooled
  • Exhaust elbow — dry 203 mm (8 in)
  • Three-way catalyst — 1.0 g NOx and 0.5 g NOx NTE options
  • Flywheel, SAE No. 14 or 18
  • Flywheel housing, SAE No. 0
  • SAE standard rotation
  • Air/fuel ratio control
  • Gas pressure regulator
  • Natural gas carburetor
  • Crankcase breather — top mounted
  • Oil cooler
  • Oil filter — RH
  • Oil filler in valve cover, dipstick — RH
  • Engine mounting rails — 254 mm (10 in) industrialtype, entire length
  • ADEM A4 protection
  • The following include alarm and shutdown:
  • The following is display only
  • Paint, Caterpillar yellow
  • Crankshaft vibration damper and drive pulleys
  • Lifting eyes
  • Cylinder block inspection covers

Optional Equipment

  • 24V, 35A CSA alternator
  • Exhaust flex fitting
  • Exhaust elbow
  • Exhaust flange — ANSI
  • Operator interface panel
  • Operator interface panel enclosure
  • 15', 20', 50' interconnect harness
  • Air pressure regulator
  • Air start silencer
  • Vane starter
  • Electric starter
  • Turbine starter
  • Fuel filter
  • Precleaner
  • Rain cap