336 Excavator

  • Specs Summary
  • Bore
    121 mm (4.75 in)
  • Stroke
    152 mm (6.0 in)
  • Displacement
    7.0 L (425 in³)
  • Minimum Power
    95 bhp (71 bkW)

Cat® G3304 Industrial Gas Engine

The Cat® G3304 Industrial Gas Engine is offered in the following rating: 71 bkW (95 bhp) @ 1800 rpm. This rating is NSPS site compliant capable with customer-supplied aftertreatment. Some ratings also have standard emission settings available for export only. For specific emission information, please consult your local Cat Dealer.

General

  • Bore 121 mm (4.75 in)
  • Stroke 152 mm (6.0 in)
  • Displacement 7.0 L (425 in³)
  • Aspiration Naturally Aspirated (NA)
  • Engine Configuration Engine - Continuous

Power Rating

  • Minimum Power 95 bhp (71 bkW)
  • Maximum Power 95 bhp (71 bkW)
  • Frequency 1800 rpm

Engine Dimensions (Approximate. Final dimensions dependent on selected options)

  • Weight, Net Dry 757 kg (1670 lb)
  • Height 1170 mm (46 in)
  • Width 744 mm (29 in)
  • Length 1158 mm (46 in)

Standard Equipment

Air Inlet System

  • Air cleaner
  • Air cleaner rain cap
  • Service indicator

Control System

  • Hydra-mechanical governor

Cooling System

  • Thermostats and housing
  • Jacket water pump — gear-driven

Exhaust System

  • Watercooled exhaust manifolds
  • Dry exhaust elbow

Flywheel & Flywheel Housing

  • SAE No. 1 flywheel
  • SAE No. 1 flywheel housing
  • SAE standard rotation

Fuel System

  • Gas pressure regulator
  • Natural gas carburetor

Ignition System

  • Altronic V ignition system

Instrumentation

  • Service meter

Lube System

  • Crankcase breather — top mounted
  • Oil cooler
  • Oil pan — full sump
  • Oil filler and dipstick

Mounting System

  • Engine supports

Protection System

  • Shutoffs

General

  • Paint — Cat yellow
  • Crankshaft drive pulley
  • Lifting eyes

Optional Equipment

Charging System

  • Battery chargers
  • Charging alternators
  • Ammeter gauge
  • Ammeter gauge and wiring

Control System

  • Vernier and positive locking control

Cooling System

  • Expansion tank
  • Heat exchanger/expansion tank
  • Radiator
  • Blower fan
  • Suction fan
  • Belt tightener
  • Fan drive

Exhaust System

  • Flexible fittings
  • Elbows
  • Flange
  • Pipe
  • Rain cap
  • Mufflers

Ignition System

  • Altronic III
  • CSA shielded ignition
  • Wiring harness

Instrumentation

  • Gauges and instrument panels

Lube System

  • Lubricating oil

Mounting System

  • Vibration isolators

Power Take-Offs

  • Auxiliary drive pulleys
  • Auxiliary pump
  • Enclosed clutch
  • Flywheel stub shaft
  • Front stub shaft

Protection System

  • Mechanical shutoffs
  • Gas valves

Starting System

  • Air starting motor
  • Air pressure regulator
  • Air silencer
  • Electric starting motor
  • Battery sets
  • Battery cables
  • Battery rack

General

  • Tool set