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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.

G3512 Low Emissions 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: 589-749 bkW (790-1004 bhp) @ 1200-1400 rpm are NSPS site compliant capable with customer-provided aftertreatment.

Product Details

Engine Specifications

Minimum Rating 589.0 bkW
Maximum Rating 749.0 bkW
Emissions NSPS Site Compliant Capable
Ignition, Protection ADEM™ A3
Air/Fuel Ratio Control ADEM™ A3
  • Air Inlet System
    •  Air cleaner — intermediate-duty with service indicator
  • Cooling System
    •  High temperature circuit (engine jacket + oil cooler):
    •  Low temperature circuit (aftercooler):
  • Exhaust System
    •  Watercooled exhaust manifolds
    •  Crankcase breather — top mounted
  • Flywheels & Flywheel Housings
    •  SAE No. 00 flywheel
    •  SAE No. 00 flywheel housing
    •  SAE standard rotation
  • Fuel System
    •  Gas pressure regulator
    •  Natural gas carburetor
  • Instrumentation
    •  Advisor panel
  • Lubrication System
    •  Oil cooler
    •  Oil filter — RH
    •  Oil bypass filter (TA or NA engines only)
    •  Oil pan — shallow
    •  Oil sampling valve
    •  Turbo oil accumulator
  • Oil cooler
    • Oil filter — RH
      • Oil bypass filter (TA or NA engines only)
        • Oil pan — shallow
          • Oil sampling valve
            • Turbo oil accumulator
              • Mounting System
                •  Rails, engine mounting — 254 mm (10 in.)
              • Protection System
                •  Electronic shutoff system
                •  Gas shutoff valve
              • Electronic shutoff system
                • Gas shutoff valve
                  • General
                    •  Paint — Cat yellow
                    •  Vibration damper and guard — dual 484 mm (23 in.)
                  • Paint — Cat yellow
                    • Vibration damper and guard — dual 484 mm (23 in.)
                      • Air Inlet System
                        •  Remote air inlet adapters
                        •  Precleaners
                      • Charging System
                        •  Battery chargers
                        •  Charging alternator
                      • Cooling System
                        •  Cleanable aftercooler core
                        •  Connection flanges
                        •  Expansion and overflow tank
                        •  Water level switch gauge
                      • Cleanable aftercooler core
                        • Connection flanges
                          • Expansion and overflow tank
                            • Water level switch gauge
                              • Exhaust System
                                •  Flexible fittings
                                •  Elbows
                                •  Connection flanges
                                •  Exhaust expanders
                                •  Rain cap (NA engine only)
                                •  Mufflers
                              • Fuel System
                                •  Low pressure gas conversions
                                •  Propane gas valve and jet kits
                                •  Fuel filter
                                •  Air/fuel ratio control
                              • Low pressure gas conversions
                                • Propane gas valve and jet kits
                                  • Fuel filter
                                    • Air/fuel ratio control
                                      • Instrumentation
                                        •  PL1000 communications modules
                                      • Lubrication System
                                        •  Oil bypass filter removal
                                        •  Oil pan accessories
                                        •  Sump pump
                                        •  Air prelube pump
                                        •  Manual prelube pump
                                        •  Lubricating oil
                                      • Mounting System
                                        •  Rails
                                        •  Vibration isolators
                                      • Rails
                                        • Vibration isolators
                                          • Power Take-Offs
                                            •  Front accessory drives
                                            •  Auxiliary drive shafts and pulleys
                                            •  Front stub shaft
                                            •  Pulleys
                                          • Front accessory drives
                                            • Auxiliary drive shafts and pulleys
                                              • Front stub shaft
                                                • Pulleys
                                                  • Protection System
                                                    •  Crankcase explosion relief valves
                                                  • Starting System
                                                    •  Air starting motor
                                                    •  Air pressure regulator
                                                    •  Air silencer
                                                    •  Electric air start controls
                                                    •  Electric starting motors — dual 24-volt
                                                    •  Battery sets (24-volt dry), cables, and rack
                                                  • Air starting motor
                                                    • Air pressure regulator
                                                      • Air silencer
                                                        • Electric air start controls
                                                          • Electric starting motors — dual 24-volt
                                                            • Battery sets (24-volt dry), cables, and rack
                                                              • General
                                                                •  Flywheel guard removal
                                                                •  Engine barring group
                                                                •  Premium 8:1 pistons
                                                              Built for it