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Gas Engines

Cat® industrial engines are ready for your application. These engines deliver the unsurpassed reliability, durability, fuel efficiency, and low cost of ownership you have come to expect from Caterpillar. And our world-class product support will never let you down. All this adds up to a powerful advantage for you. Every Cat industrial diesel and gas engine comes with 75 years of engine experience. Our world-class product line of high-speed and medium-speed industrial engines in a wide range of applications offer power solutions for the most demanding installations and the harshest environments. With power options from 8.2 to 6,100 bkW (11 to 8,180 bhp), Cat industrial diesel and gas engines offer the widest power range in the industry.

Cat® G3508 Industrial Gas Engine

Cat® G3508 Industrial Gas Engine. Ratings: 391 bkW (524 bhp) @ 1200 rpm and 500-514 bkW (670-690 bhp) @ 1400 rpm are NSPS site compliant capable with customer-supplied aftertreatment. For specific emission information, please consult your local Cat Dealer.

Product Details

General

Bore 170 mm (6.7 in)
Stroke 190 mm (7.5 in)
Displacement 34.5 L (2105 in³)
Aspiration Turbocharged Aftercooled (TA)
Engine Configuration Engine - Continuous

Power Rating

Minimum Power 391 bkW
Maximum Power 514 bkW
Frequency 1200-1400 rpm

Engine Dimensions (Approximate. Final dimensions dependent on selected options)

Weight, Net Dry 3941 kg (8688 lb)
Height 2131 mm (84 in)
Width 2014 mm (79 in)
Length 2522 mm (99 in)
  • Air Inlet System
    •  Remote air inlet adapters
  • Remote air inlet adapters
    • Charging System
      •  Battery chargers
    • Cooling System
      •  Jacket water thermostats and housing — full opentemperature 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 opentemperature 35°C (95°F)
      •  Aftercooler — raw water, cleanable
    • Jacket water thermostats and housing — full opentemperature 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 opentemperature 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
                • Fuel System
                  •  Gas pressure regulator
                  •  Natural gas carburetor
                  •  Fuel gas shut-off valve (24V DC)
                • 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
                      • Crankcase breathers — top mounted
                        • Oil cooler
                          • Oil filter — RH
                            • Oil pan — shallow
                              • Oil sampling valve
                                • Turbo oil accumulator
                                  • Mounting System
                                    •  Rails, engine mounting
                                  • Power Take-Offs
                                    •  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
                                      • Charging System
                                        •  Battery chargers
                                      • Cooling System
                                        •  Aftercooler core
                                        •  Thermostatic valves
                                        •  Connections
                                        •  Expansion and overflow tank
                                        •  Water level switch gauge
                                      • European Certifications
                                        •  European Union certifications
                                      • Exhaust System
                                        •  Flexible fittings
                                        •  Elbows
                                        •  Flanges
                                        •  Flange and exhaust expanders
                                        •  Mufflers
                                      • Flexible fittings
                                        • Elbows
                                          • Flanges
                                            • Flange and exhaust expanders
                                              • Mufflers
                                                • Fuel System
                                                  •  Fuel filter
                                                • Fuel filter
                                                  • Instrumentation
                                                    •  Customer communication modules
                                                  • 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
                                                            • 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
                                                                          Built for it