320D/320D L

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3.59% p.a. over 60 months competitive finance
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The D Series incorporates innovations for improved performance and versatility.


Engine Model Cat® C6.4 ACERT™ Cat® C6.4 ACERT™ Less
Net Flywheel Power 138.0 hp 103.0 kW Less
Net Power - ISO 9249 138.0 hp 103.0 kW Less
Bore 4.02 in 102.0 mm Less
Stroke 5.12 in 130.0 mm Less
Displacement 389.0 in3 6.4 L Less
Net Power - EEC 80/1269 138.0 hp 103.0 kW Less
Net Power - SAE J1349 138.0 hp 103.0 kW Less


Operating Weight 47510.0 lb 21550.0 kg Less
Operating Weight - Std. Undercarriage 44870.0 lb 20350.0 kg Less
Operating Weight - Long Undercarriage 47510.0 lb 21550.0 kg Less

Service Refill Capacities

Fuel Tank Capacity 108.0 gal 410.0 L Less
Cooling System 6.6 gal 25.0 L Less
Engine Oil 8.0 gal 30.0 L Less
Swing Drive 2.1 gal 8.0 L Less
Final Drive (each) 2.1 gal 8.0 L Less
Hydraulic System (including tank) 69.0 gal 260.0 L Less
Hydraulic Tank 32.0 gal 120.0 L Less
Hydraulic Tank (Including suction pipe) 36.0 gal 138.0 L Less

Swing Mechanism

Swing Speed 11.5 RPM 11.5 RPM Less
Swing Torque 45600.0 lb ft 62.0 kN·m Less


Maximum Drawbar Pull 46300.0 lb 206.0 kN Less
Maximum Travel Speed 3.5 mph 5.7 km/h Less

Hydraulic System

Main Implement System - Maximum Flow (2x) 54.0 gal/min 205.0 L/min Less
Max. Pressure - Equipment 5076.0 psi 35000.0 kPa Less
Max. Pressure - Travel 5076.0 psi 35000.0 kPa Less
Max. Pressure - Swing 3553.0 psi 24500.0 kPa Less
Pilot System - Maximum Flow 9.0 gal/min 32.4 L/min Less
Pilot System - Maximum Pressure 566.0 psi 3900.0 kPa Less
Boom Cylinder - Bore 4.7 in 120.0 mm Less
Boom Cylinder - Stroke 49.6 in 1260.0 mm Less
Mass Stick Cylinder - Bore 5.5 in 140.0 mm Less
Reach Stick Cylinder - Bore 5.5 in 140.0 mm Less
B1 Family Bucket Cylinder - Bore 4.7 in 120.0 mm Less
Mass Stick Cylinder - Stroke 59.2 in 1504.0 mm Less
Reach Stick Cylinder - Stroke 59.2 in 1504.0 mm Less
B1 Family Bucket Cylinder - Stroke 43.5 in 1104.0 mm Less
CB2 Family Bucket Cylinder - Bore 5.3 in 135.0 mm Less
CB2 Family Bucket Cylinder - Stroke 45.5 in 1156.0 mm Less

Sound Performance

Performance ANSI/SAE J1166 OCT 98 ANSI/SAE J1166 OCT 98 Less


Brakes SAE J1026 APR90 SAE J1026 APR90 Less
Cab/FOGS SAE J1356 FEB88 SAE J1356 FEB88 Less

C6.4 with ACERT™ Technology

The Cat® C6.4 gives the 320D exceptional power and fuel efficiency unmatched in the industry for consistently high performance in all applications.


Cat® hydraulics deliver power and precise control to keep material moving.

Operator Comfort

Caterpillar offers the most intuitive and easy to operate excavators while providing great all around visibility and exceptional operator comfort.


The vertical monitor enhances operator visibility. The full-color Liquid Crystal Display gives you vital operating and performance information, alerts in text, all in a simple, easy to navigate format delivering information in 27 languages.


320D is designed to handle the most rugged operating conditions, while providing long life and value.

Booms, Sticks and Bucket Linkages

Built for Performance and long service life, Caterpillar® booms and sticks are large, welded, box-section structures with thick, multi-plate fabrications in high stress areas.

Work Tools - Attachments

The 320D has an extensive selection of work tools to optimize machine performance.


A wide variety of optional factory-installed attachments are available to enhance performance and improve job site management.

Service and Maintenance

Simplified service and maintenance features save you time and money.

Complete Customer Support

Cat® dealer services help you operate longer with lower costs.

320D/320D L Standard Equipment

  • Alternator, 50A
  • Light, storage box mounted (one)
  • Signaling/Warning horn

Engine/Power Train
  • C6.4 with ACERT™ Technology
  • 2300 m (7500 ft) altitude capability without derate
  • Air intake heater
  • Automatic engine speed control with one touch low idle
  • Equivalent to EU Stage II/EPA Tier 2 compliant
  • Radial seal air filter
  • Water separator in fuel line
  • Waved fin radiator with space for cleaning
  • 2 micron fuel filter

Operator Environment
  • Adjustable armrest
  • Ashtray with 24 volt lighter
  • Beverage/cup holder
  • Bi-Level air conditioner (automatic) with defroster
  • Bolt-on Falling object Guarding System (FOGS) capability
  • Capability of installing two additional pedals
  • Coat hook
  • Front windshield glass split 70/30
  • Light, interior
  • Literature holder
  • Monitor
  • Mounting for two stereo speakers (two locations)
  • Neutral lever (lock out) for all controls
  • Openable front windshield with assist device
  • Openable skylight
  • Pillar mounted upper windshield wiper and washer
  • Pressurized cab
  • Radio mounting (DIN size)
  • Rear window, emergency exit
  • Removable lower windshield with in-cab storage bracket
  • Seat with integrated, adjustable console
  • Seat belt, retractable (two inch width)
  • Sliding upper door window
  • Storage compartment suitable for lunch box
  • Travel control pedals with removable hand levers
  • Utility space for magazine
  • Washable floor mat

  • Grease lubricated GLT2, resin seal
  • Idler and center section track guiding

Other Standard Equipment
  • Automatic swing parking brake
  • Boom drift reducing valve
  • Boom lowering device for back-up
  • Counterweight with lifting eyes
  • Door locks, cap locks and Caterpillar® one key security system
  • Mirrors (frame-right, cab left)
  • Regeneration circuit for boom and stick
  • Reverse swing damping valve
  • Stick drift reducing valve
  • Two speed travel

320D/320D L Optional Equipment

Front Linkage
  • Booms
  • Sticks
  • Bucket Linkage
  • Boom Lowering Control Device
  • Stick Lowering Check Valve

  • Machine Security System (MSS)
  • Light, Boom - Right side
  • Lights, Cab mounted (2)
  • Power supply (12V-7 AMP)
  • Product Link (PL121SR/PL321SR
  • Pump, Electric refueling
  • Travel Alarm

  • Falling Object Guarding System (FOGS)
  • Front windshield guard
  • Heavy-duty bottom guards
  • Track guiding guards
  • Vandalism guards

Operator Environment
  • Hand control pattern changer (ISO-SAE)
  • Seat, high back with air suspension and heater
  • Third pedal, straight travel
  • Wiper, Lower windshield

Engine/Power Train
  • Prefilter, air
  • Starting, Cold weather package to -32° C (-26° F)
  • Water level indicator (Fuel)

  • Standard undercarriage
  • Long undercarriage
  • Track shoes
  • Heavy-duty rollers

Auxiliary Hydraulics
  • Hammer Circuit
  • Thumb Circuit
  • Tool Control System
  • Common Circuit
  • Hydraulic pin grabber quick coupler and controller
  • Lines for booms and sticks

Work Tools
  • Wide offering of buckets, tips and sidecutters

Optimise Jobsite Efficiency with Cat® Machine and Technology Solutions

Talk to your Cat dealer about the range of innovative machine technology and fleet management solutions including GRADE, PAYLOAD and LINK technologies. Our 3-year Equipment Protection Plan is now standard on many models* and Caterpillar is standing behind fuel efficiency with our Fuel Edge Program. Plus your Cat dealer can offer competitive finance rates with Caterpillar Financial Australia. 

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