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336 Excavator

  • Specs Summary

G3616 Gas Compression Engine

G3600 engines provide a wide range of power options to fit your gas compression application. G3600 engines bring the highest uptime in the industry and long operating intervals between overhaul. Operators that use G3600 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 G3600 engines include centralized gathering stations, gas processing, transmissions, and storage applications. Cat G3616 gas engine with ratings: 3531-3762 bkW (4735-5045 bhp) @ 1000 rpm. NSPS site compliant capable.

Standard Equipment

Air Inlet System

  • Heavy-duty air cleaner with precleaners
  • Air cleaner — standard duty
  • Inlet air adapter
  • Heavy-duty air cleaner with rain protection

Cooling System

  • Jacket water pump
  • Jacket water thermostats and housing
  • Expansion tank
  • Aftercooler pump
  • Aftercooler water thermostats and housing
  • Flexible connections
  • Single-stage aftercooler
  • Jacket water heater

Exhaust System

  • Dry wrapped exhaust manifolds
  • Flexible bellows adapters
  • Vertical outlet adapter
  • Exhaust expander
  • Weld flanges

Flywheel & Flywheel Housing

  • SAE standard rotation


  • LCD display panel — monitors engine parameters and displays diagnostic codes
  • Remote data monitoring and speed control
  • Compatible with Cat Electronic Technician (ET) and Data View
  • Communication Device — PL1000T/E
  • Display panel deletion is optional

Lube System

  • Crankcase breathers — top mounted
  • Oil cooler
  • Oil filter
  • Oil pan drain valve
  • Air or electric motor-driven prelube
  • Duplex oil filter
  • LH or RH service
  • Lube oil makeup system

Mounting System

  • Engine mounting feet (six total)
  • Mounting plates (set of six)

Protection System

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

Starting System

  • Air starting system
  • Air pressure reducing valve
  • Natural gas starting system


  • Paint — Cat yellow
  • Vibration dampers
  • Engine barring device
  • Damper guard

Optional Equipment

Charging System

  • Charging alternators

Control System

  • A3 control system — provides electronic governing integrated with air/fuel ratio control and individual cylinder ignition timing control
  • Custom control system software — available for nonstandard ratings, field programmable using flash memory

Fuel System

  • Fuel filter
  • Gas admission valves — electronically controlled fuel supply pressure
  • Gas pressure regulator
  • Flexible connection
  • Low energy fuel system
  • Corrosive gas fuel system

Ignition System

  • A3 control system — senses individual cylinder detonation and controls individual cylinder timing
  • CSA certification

Power Take-Offs

  • Front stub shafts