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Gas Compression Engines

Oil and gas producers have relied on Caterpillar since the industry's earliest days. For 60 years, we've powered the petroleum business on land. Now we go with it onto the ocean, hundred of miles out, thousands of feet down.

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.

Product Details

Engine Specifications

Minimum Rating 447.0 bkW
Maximum Rating 447.0 bkW
Emissions NSPS 2010
Displacement 27.0 L
Compression Ratio 8.3:1
Aspiration Turbocharged-Aftercooled
Rotation (from flywheel end) Counterclockwise
Flywheel and Flywheel Housing SAE No. 14 or 18, Flywheel Housing SAE No. 0
Flywheel Teeth 136
Weight (dry) 2835.0 kg
Oil Change Interval 750 hours
Ignition, Protection Electronic ADEM A4
Air/Fuel Ratio Control Electronic ADEM A4
Stroke 152.4 mm
Bore 137.2 mm

Capacity for Liquids

Cooling System 75.0 L
Lube Oil System (refill) 170.0 L
  • Air Inlet System
    •  Air cleaner — single element with service indicator
    •  Optional air inlet adapter and rain cap — recommended for weather protection
  • 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
      • 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
          • 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
                • 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
                  • 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
                        • Charging Alternator
                          •  24V, 35A CSA alternator
                        • Exhaust System
                          •  Exhaust flex fitting
                          •  Exhaust elbow
                          •  Exhaust flange — ANSI
                        • Exhaust flex fitting
                          • Exhaust elbow
                            • Exhaust flange — ANSI
                              • Instrumentation
                                •  Operator interface panel
                                •  Operator interface panel enclosure
                                •  15', 20', 50' interconnect harness
                              • Operator interface panel
                                • Operator interface panel enclosure
                                  • 15', 20', 50' interconnect harness
                                    • Starting System
                                      •  Air pressure regulator
                                      •  Air start silencer
                                      •  Vane starter
                                      •  Electric starter
                                      •  Turbine starter
                                    • Fuel System
                                      •  Fuel filter
                                    • Air Inlet System
                                      •  Precleaner
                                      •  Rain cap
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