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G3512B Low Emissions Gas Compression Engine

G3512B Low Emissions Gas Compression Engine

The line of G3500B engines brings versatility, uptime, and low operating cost to your gas compression operation. They deliver the lowest engine-out emissions in the industry without sacrificing performance.Ideal applications for G3500B engines include gas lift, gas gathering, and wellhead gas compression. Cat G3512B gas engine. Ratings: 772 bkW (1035 bhp) @ 1400 rpm are NSPS site compliant capable.

Engine Specifications


NSPS Site Compliant Capable

Minimum Rating


Ignition, Protection


Standard Equipment:

  • 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
  • Ignition System
    • 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
  • Torsional Vibration Analysis
    • Provided through Caterpillar
  • General
    • Paint — Cat yellow
    • Crankshaft vibration damper and guard

Optional Equipment:

  • Air Inlet System
    • Round air inlet adaptors
  • Charging System
    • 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
  • Power Take-offs
    • Front stub shaft
    • Pulleys
  • General
    • Special paint
  • Eu Certification
    • EEC DOI certification
  • Support
    • Factory commissioning

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