G3512 LE Gas Petroleum Engine

G3512 TA

Features At A Glance

Advanced Digital Engine Management
Lean Burn Engine Technology
Ease of Operation
Full Range of Attachments
Gas Engine Rating Pro
Product Support Offered Through Global Cat Dealer
Over 80 Years of Engine Manufacturing Experience
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Product Specifications for G3512 TA

Engine Specifications

G3512 TA Standard Equipment

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


  • 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

Mounting System

  • Rails, engine mounting — 254 mm (10 in.)

Protection System

  • Electronic shutoff system
  • Gas shutoff valve


  • Paint — Cat yellow
  • Vibration damper and guard — dual 484 mm (23 in.)

G3512 TA Optional Equipment

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

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


  • 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

Power Take-Offs

  • 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


  • Flywheel guard removal
  • Engine barring group
  • Premium 8:1 pistons

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