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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® G3512, G3512B Industrial Gas Engine

Cat® G3512 and G3512B Industrial Gas Engines. Ratings: 589-642 bkW (790-860 bhp) @ 1200 rpm and 749-772 bkW (1004-1035 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 51.8 L (3158 in³)
Aspiration Turbocharged Aftercooled (TA)
Engine Configuration Engine - Continuous

Power Rating

Minimum Power 589 bkW
Maximum Power 772 bkW
Frequency 1200-1400 rpm

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

Weight, Net Dry 4950 kg (10913 lb)
Height 2136 mm (84.1 in)
Width 2220 mm (87.4 in)
Length 3023 mm (119 in)
  • Air Inlet System
    •  Axial flow air cleaner
    •  Cleanable
    •  Single element canister type with service indicator
  • Control System
    •  ADEM A3 with integrated electronic throttle control
    •  CSA certified
  • Cooling System
    •  Two-stage charge air cooling
    •  Thermostats and housing
    •  Gear-driven jacket and aftercooler water pump
    •  Stainless steel aftercooler cores
  • Exhaust System
    •  Dry exhaust manifolds
    •  Exhaust outlet: 200 mm I.D.
  • Flywheels and Flywheel Housings
    •  SAE No. 00 flywheel
    •  SAE No. 00 flywheel housing
    •  SAE standard rotation
  • Fuel System
    •  7-50 psi gas supply
    •  Electronic fuel metering valve
    •  Gas pressure regulator, pivot valve operated
  • 7-50 psi gas supply
    • Electronic fuel metering valve
      • Gas pressure regulator, pivot valve operated
        • Ignition System
          •  ADEM A3
          •  Outdoor CSA certified
        • ADEM A3
          • Outdoor CSA certified
            • Lubrication System
              •  Crankcase breather — top mounted
              •  Oil cooler
              •  Oil filter — RH
              •  Oil pan
              •  Oil sampling valve
              •  Turbo oil accumulator
            • Power Take-Offs
              •  Front housing — two-sided
              •  Front lower — LH accessory drive
            • Front housing — two-sided
              • Front lower — LH accessory drive
                • Torsional Vibration Analysis
                  •  Provided through Caterpillar
                • General
                  •  Paint — Cat yellow
                  •  Crankshaft vibration damper and guard
                • Paint — Cat yellow
                  • Crankshaft vibration damper and guard
                    • Air Inlet System
                      •  Round air inlet adaptors
                    • Charging System
                      •  Battery chargers
                      •  CSA certified version available with
                    • Battery chargers
                      • CSA certified version available with
                        • Cooling System
                          •  Mechanical joint assembly connections
                        • Exhaust System
                          •  Flexible fittings
                          •  Elbows
                          •  Flanges
                        • Fuel System
                          •  Gas filter
                        • Instrumentation
                          •  Advisor display panel
                          •  Communications module
                        • Lubrication System
                          •  Lubricating oil
                          •  Oil bypass filter
                          •  Air prelube pump
                        • Lubricating oil
                          • Oil bypass filter
                            • Air prelube pump
                              • Power Take-Offs
                                •  Front stub shaft
                                •  Pulleys
                              • General
                                •  Special paint
                              • Special paint
                                • EU Certification
                                  •  EEC DOI certification
                                • EEC DOI certification
                                  • Support
                                    •  Factory commissioning
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