336 Excavator

  • Specs Summary
  • Minimum Rating
    1875 bhp (1398 bkW)
  • Maximum Rating
    2010 bhp (1499 bkW)
  • Emissions
    NSPS Site Compliant Capable
  • Displacement
    7762 in3 (127.2 L)

G3606 A4 Gas Engine

G3600 A4 engines provide a wide range of power options to fit your gas compression application. G3600 A4 engines bring the highest uptime in the industry and long operating intervals between overhaul. Operators that use G3600 A4 engines in their fleet enjoy virtually no unscheduled downtime, the right power for their application, the lowest operating costs, and emissions compliance. Ideal applications for G3500B engines include centralized gathering stations, gas processing, transmissions, and storage applications. Cat G3606A4 gas engine with ratings: 1398-1499 bkW (1875-2010 bhp) @ 1000 rpm are NSPS site compliant capable.

Engine Specifications

  • Minimum Rating 1875 bhp (1398 bkW)
  • Maximum Rating 2010 bhp (1499 bkW)
  • Emissions NSPS Site Compliant Capable
  • Displacement 7762 in3 (127.2 L)
  • Compression Ratio 9.2:1
  • Aspiration Turbocharged-Aftercooled
  • Rotation (from flywheel end) Counterclockwise
  • Flywheel Teeth 255
  • Weight (dry) 36883 lb (16730 kg)
  • Oil Change Interval 5000 hours
  • Ignition, Protection Electronic (ADEM™ A4)
  • Stroke 11.8 in (300 mm)
  • Bore 11.8 in (300 mm)

Capacity for Liquids

  • Cooling System 124 gal (470 L)
  • Lube Oil System (refill) 187 gal (708 L)

Standard Equipment

Air Inlet System

  • Air cleaner — standard-duty inlet air adapter

Control System

  • A4 control system — provides electronic governing integrated with air/fuel ratio control and individual cylinder ignition timing control
  • Electrical system and instrumentation certified for Class I, Division 2, Group D hazardous location. Includes entire ADEM A4 system and optional control panel.

Cooling System

  • Jacket water pump
  • Jacket water thermostats and housing
  • Aftercooler/oil cooler pump
  • Aftercooler/oil cooler thermostats and housing
  • Two-stage aftercooler
  • Jacket water heater connections
  • Standard ANSI connections

Exhaust System

  • Dry exhaust manifolds
  • Single vertical outlet adapter
  • Stainless steel encapsulated insulation

Flywheels and Flywheel Housing

  • SAE standard rotation

Fuel System

  • Gas admission valves -- electronically controlled fuel supply pressure

Ignition System

  • A4 control system — senses individual cylinder detonation and controls individual cylinder timing

Lube System

  • Crankcase breathers (top mounted)
  • Oil cooler
  • Oil filter
  • Oil pan drain valves -- front and rear

Mounting System

  • Engine mounting feet (six total)


  • Electronic shutoff system with purge cycle
  • Crankcase explosion relief valves
  • Gas shutoff valve

Starting System

  • Air starting system


  • Paint — Cat yellow
  • Vibration dampers

Optional Equipment

Air Inlet System

  • Heavy-duty air cleaner with precleaners

Charging System

  • 35 Amp & 65 Amp charging alternators – CSA approved

Exhaust System

  • Flexible bellows adapters
  • Exhaust expander
  • Weld flanges

Fuel System

  • Fuel filter
  • Gas pressure regulator
  • Flexible connection


  • LCD display panel
  • Remote data monitoring and speed control
  • Color HMI display
  • Compatible with Cat® Electronic Technician (ET) and Data View
  • Modbus and Ethernet capable

Lube System

  • Air or electric motor-driven prelube
  • Duplex oil filter
  • RH Service
  • Lube oil makeup system

Mounting System

  • Mounting plates (set of four)
  • Extra mounting feet (set of two)
  • Extra mounting plates (set of two)

Power Take-Offs

  • Front stub shafts

Starting System

  • Air pressure reducing valve


  • Engine barring device
  • Damper guard