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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.

CG137-8 Gas Compression 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 CG137-8 engines include gas lift, gas gathering, and wellhead gas compression. Cat CG137-8 gas engine. Ratings: 298 bkW (400 bhp) @ 1800 rpm are NSPS site compliant capable with customer-provided air-fuel ratio control and aftertreatment.

Product Details

Engine Specifications

Minimum Rating 298.0 bkW
Maximum Rating 298.0 bkW
Emissions NSPS Site Compliant Capable
Displacement 18.0 L
Compression Ratio 10.25:1
Aspiration Turbocharged-Aftercooled
Rotation (from flywheel end) Counterclockwise
Flywheel and 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 152.0 mm
Bore 137.0 mm

Capacity for Liquids

Cooling System 55.0 L
Lube Oil System (refill) 148.0 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)
          • Flywheels & Flywheel Housings
            •  Flywheel, SAE No. 14 or 18
            •  Flywheel housing, SAE No. 0
            •  SAE standard rotation
          • Fuel System
            •  Gas pressure regulator
            •  Natural gas carburetor
          • Lube System
            •  Crankcase breather — top mounted
            •  Oil cooler
            •  Oil filter — RH
            •  Oil filler in valve cover, dipstick — RH
          • Crankcase breather — top mounted
            • Oil cooler
              • Oil filter — RH
                • Oil filler in valve cover, dipstick — RH
                  • 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
                  • Paint, Caterpillar yellow
                    • Crankshaft vibration damper and drive pulleys
                      • Lifting eyes
                        • Cylinder block inspection covers
                          • Charging Alternator
                            •  24V, 60A 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
                                      • Air pressure regulator
                                        • Air start silencer
                                          • Vane starter
                                            • Electric starter
                                              • Turbine starter
                                                • Fuel System
                                                  •  Fuel filter
                                                • Air Inlet System
                                                  •  Precleaner
                                                  •  Rain cap
                                                Built for it