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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.

G3508 Low Emission Gas Compression Engine

The line of G3500 engines brings versatility, uptime, and low operating cost to your gas compression operation. They are equipped with ADEM A3 technology that enables highest performance and safety while maintaining low emissions. Ideal applications for G3500 engines include gas lift, gas gathering, and wellhead gas compression. Cat G3508 gas engine. Ratings: 391-500 bkW (524-670 bhp) @ 1200-1400 rpm are NSPS site compliant capable with customer-provided air-fuel ratio control and aftertreatment or available for non-regulated areas.

  • Specification Summary

  • Minimum Rating 391.0 bkW
  • Maximum Rating 500.0 bkW
  • Emissions NSPS Site Compliant Capable or Non-regulated
  • Ignition, Protection ADEM™ A3
  • Specification Sheet

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Product Details

Engine Specifications

Minimum Rating 391.0 bkW
Maximum Rating 500.0 bkW
Emissions NSPS Site Compliant Capable or Non-regulated
Ignition, Protection ADEM™ A3
Air/Fuel Ratio Control ADEM™ A3
  • Air Inlet System
    •  Remote air inlet adapters
  • Charging System
    •  Battery chargers
  • Battery chargers
    • 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 sea-air atmosphere
      •  Aftercooler thermostats and housing — full open temperature 35°C (95°F)
      •  Aftercooler — raw water, cleanable
    • Exhaust System
      •  Exhaust manifolds — watercooled
    • Flywheels & Flywheel Housings
      •  SAE No. 00 flywheel
      •  SAE No. 00 flywheel housing
      •  SAE standard rotation
    • SAE No. 00 flywheel
      • SAE No. 00 flywheel housing
        • SAE standard rotation
          • Fuel System
            •  Gas pressure regulator
            •  Natural gas carburetor
            •  Fuel gas shut-off valve (24V DC)
          • Instrumentation
            •  Advisor panel
            •  Advisor interconnect harness
          • Lubrication System
            •  Crankcase breathers — top mounted
            •  Oil cooler
            •  Oil filter — RH
            •  Oil pan — shallow
            •  Oil sampling valve
            •  Turbo oil accumulator
          • Mounting System
            •  Rails, engine mounting
          • Rails, engine mounting
            • Power Take-Offs
              •  Front housing — two-sided
              •  Front lower LH accessory drive
            • Front housing — two-sided
              • Front lower LH accessory drive
                • Protection System
                  •  Electronic shutoff system
                  •  Gas shutoff valve
                • Electronic shutoff system
                  • Gas shutoff valve
                    • General
                      •  Paint — Cat yellow
                      •  Vibration damper and guard
                    • Air Inlet System
                      •  Remote air inlet adapters
                    • Remote air inlet adapters
                      • Charging System
                        •  Battery chargers
                      • Battery chargers
                        • Cooling System
                          •  Aftercooler core
                          •  Thermostatic valves
                          •  Connections
                          •  Expansion and overflow tank
                          •  Water level switch gauge
                        • Aftercooler core
                          • Thermostatic valves
                            • Connections
                              • Expansion and overflow tank
                                • Water level switch gauge
                                  • European Certifications
                                    •  European Union certifications
                                  • European Union certifications
                                    • Exhaust System
                                      •  Flexible fittings
                                      •  Elbows
                                      •  Flanges
                                      •  Flange and exhaust expanders
                                      •  Mufflers
                                    • Fuel System
                                      •  Fuel filter
                                    • Fuel filter
                                      • Instrumentation
                                        •  Customer communication modules
                                      • Lubrication System
                                        •  Oil filters — duplex
                                        •  Oil pan drain
                                        •  Oil level regulator
                                        •  Sump pumps
                                        •  Lubricating oil
                                      • Mounting System
                                        •  Rails
                                        •  Vibration isolators
                                      • Power Take-Offs
                                        •  Auxiliary drive shaft
                                        •  Auxiliary drive pulleys
                                        •  Front stub shaft
                                        •  Pulleys
                                      • Auxiliary drive shaft
                                        • Auxiliary drive pulleys
                                          • Front stub shaft
                                            • Pulleys
                                              • Protection System
                                                •  Gas valve
                                                •  Explosion relief valves
                                              • Starting System
                                                •  Air pressure regulator
                                                •  Air silencer
                                                •  JW heaters
                                                •  Battery sets (24-volt dry)
                                                •  Battery accessories
                                              • Air pressure regulator
                                                • Air silencer
                                                  • JW heaters
                                                    • Battery sets (24-volt dry)
                                                      • Battery accessories
                                                        • General
                                                          •  Flywheel guard removal
                                                          •  Engine barring group
                                                          •  Premium 8:1 pistons
                                                        • Flywheel guard removal
                                                          • Engine barring group
                                                            • Premium 8:1 pistons
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