336 Excavator

  • Specs Summary
  • Bore
    170 mm (6.7 in)
  • Stroke
    190 mm (7.5 in)
  • Displacement
    51.8 L (3158 in³)
  • Minimum Power
    790 bhp (589 bkW)

Cat® G3512, G3512B Industrial Gas Engine

The Cat® G3512 and G3512B Industrial Gas Engines are offered in the following ratings: 589-642 bkW (790-860 bhp) @ 1200 rpm and 749-772 bkW (1004-1035 bhp) @ 1400 rpm. These ratings are NSPS site compliant capable with customer-supplied aftertreatment. For specific emission information, please consult your local Cat Dealer.

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 790 bhp (589 bkW)
  • Maximum Power 1035 bhp (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)

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