336 Excavator

  • Specs Summary
  • Minimum Power
    72.4 bhp (54 bkW)
  • Maximum Power
    111.3 bhp (83 bkW)
  • Emissions
    EU Stage IIIA Equivalent (NA). U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent (T, TA)
  • Frequency
    2200-2400 rpm

Cat® C4.4 Diesel Engine

The Cat® C4.4 Naturally Aspirated (NA) Industrial Diesel Engine is offered in ratings ranging from 54-56 bkW (72.4-75 bhp) @ 2200 rpm. These ratings meet EU Stage IIIA equivalent emission standards. Turbocharged (T) and Turbocharged Aftercooled (TA) Ratings are also available, ranging from 55.5-83 bkW (74.4-111.3 bhp) @ 2200-2400 rpm. These ratings meet U.S. EPA Tier 3 equivalent, EU Stage IIIA equivalent emission standards. Industries and applications powered by C4.4 engines include: Agriculture, Aerial Lifts, Aircraft Ground Support, Bore/Drill Rigs, Chippers/Grinders, Compactors/Rollers, Compressors, Construction, Cranes, Crushers, Feller Bunchers, Forestry, Forklifts, General Industrial, Harvesters, Hydraulic Power Units, Irrigation Equipment, Loaders/Forwarders, Material Handling, Mining, Mobile Earthmoving Equipment, Mobile Sweepers, Paving Equipment, Pumps, Skidders, Specialty Ag Equipment, Sprayers, Trenchers, Turf and Landscaping and Underground Mining Equipment.

Power Rating

  • Minimum Power 72.4 bhp (54 bkW)
  • Maximum Power 111.3 bhp (83 bkW)
  • Frequency 2200-2400 rpm

Emission Standards

  • Emissions EU Stage IIIA Equivalent (NA). U.S. EPA Tier 3 Equivalent, EU Stage IIIA Equivalent (T, TA)

General

  • Engine Configuration Inline 4, 4-Stroke-Cycle Diesel
  • Bore 105 mm (4.13 in)
  • Stroke 127 mm (5.0 in)
  • Displacement 4.4 L (269 in³)
  • Aspiration Naturally Aspirated (NA), Turbocharged (T) or Turbocharged Aftercooled (TA)
  • Compression Ratio 16.2:1
  • Combustion System Direct Injection
  • Rotation (from flywheel end) Counterclockwise
  • Lube System (refill) 11 L (11.6 qt)

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

  • Length 663 mm (26.1 in)
  • Width 470-620 mm (18.5-24.4 in)
  • Height 775-810 mm (30.5-31.9 in)
  • Weight, Net Dry (Basic Operating Engine Without Optional Attachments) 291-306 kg (640-674.6 lb)

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

PETU Dimensions (Tier 4 Final, Stage IV Only)

Standard Equipment

Air Inlet System

  • Inlet manifold with choice of inlets.

Control System

  • Alternator
  • Starter motor
  • Control Panel
  • Glow plug starting aid

Cooling System

  • Top tank temperature 108° C (226° F) as standard to minimize cooling pack size
  • 50:50 water glycol mix

Flywheels and Flywheel Housing

  • SAE No. 3 flywheel housing
  • Flywheel and starter rings

Fuel System

  • Fuel filter positions

Lube System

  • Lubricating oil filters and breathers
  • Oil filter positions
  • Lube oil sump

Power Take Off

  • SAE B Power Take Off (PTO)

General

  • Timing case and gear-driven auxiliaries
  • Belt-driven auxiliaries
  • Engine mountings
  • Gauges
  • Displays
  • Power and torque curve tailoring
  • Paint: Caterpillar yellow, with optional colors available at request

Optional Equipment