• Engine

    ModelKomatsu SAA6D107E-3
    TypeFour-cycle, water-cooled, direct injection
    AspirationTurbo-charged, after-cooled, cooled EGR
    Number of cylinders6
    Bore x stroke107 mm x 124 mm
    Displacement6.69 ltr
    Horsepower, Gross - SAE J1995127 kW / 170 HP
    Horsepower, Net - ISO 9249 / SAE J1349123 kW / 165 HP
    Rated RPM2100
    Fan drive methodHydraulic
    Emissions certificationEPA Tier 4 Final
  • Operation / Application

    Bucket capacity SAE2.3 - 3.2 m3
    Standard bucket capacity SAE3.0 m3
    Bucket descriptionGeneral purpose bucket
    Bucket width2740 mm
    Dump clearance at 45° dump angle2880 mm
    Dump reach at 45° dump angle1000 mm
    Static tipping load, straight11500 kg
    Static tipping load, full turn9780 kg
    Breakout force 162 kN 16470 kgf
  • Axles and Final Drives

    Drive systemFour-wheel drive
    FrontFixed, semi-floating
    RearCentre-pin support, semi-floating, 24° total oscillation
    Reduction gearSpiral bevel gear
    Differential gearTorque proportioning
    Final reduction gearPlanetary gear, single reduction
  • Brakes

    Service brakesHydraulically actuated, wet disc brakes actuate on four wheels
    Parking brakeWet, multi-disc brake on transfer output shaft
    Secondary brakeParking brake is commonly used
  • Hydraulic System

    Steering System:

    Hydraulic pump Piston pump, in common with loader control
    Capacity (at rated rpm) 180 ltr/min
    Relief valve setting

    20.6 MPa

    210 kgf/cm2

    Hydraulic Cylinders:
    Type Double-acting, piston type
    Number of cylinders 2
    Bore x stroke 70 mm x 453 mm



    Loader Control:

    Hydraulic pump Piston pump, in common with steering system
    Capacity 180 ltr/min
    Relief valve setting

    30.4 MPa

    310 kgf/cm2

    Hydraulic Cylinders:
    Type Double-acting, piston type
    Number of boom cylinders 2
    Boom cylinder, bore x stroke 120 mm x 729 mm
    Number of bucket cylinders 1
    Bucket cylinder, bore x stroke 150 mm x 558 mm
    Control valve 2-spool type
    Control Positions:
    Boom Raise, hold, lower, and float
    Bucket Tilt-back, hold, and dump
    Hydraulic Cycle Time: (rated load in bucket)
    Raise 6.3 sec
    Dump 1.9 sec
    Lower (empty) 3.5 sec
  • Service Refill Capacities

    Cooling system35.1 ltr
    Fuel tank245 ltr
    Engine23 ltr
    Hydraulic system92 ltr
    Axle front27 ltr
    Axle rear25.5 ltr
    Transfer case5.8 ltr
    DEF tank14 ltr
  • Steering System

    TypeArticulated type, fully hydraulic power steering
    Steering angle38.5° each direction (40° to max end stop)
    Minimum turning radius at centre of outside tyre5380 mm
  • Transmission

    Transmission Hydrostatic, 1 pump, 2 motors with speed range select
    Travel speed Forward Reverse
    1st 1.0 - 13.0 km/h 1.0 - 13.0 km/h
    2nd 13.0 km/h 13.0 km/h
    3rd 18.7 km/h 18.7 km/h
    4th 38.0 km/h 38.0 km/h
    Measured with 20.5-R25 tyres
  • Tyres

    Standard tyres20.5-R25
  • Weights

    Operating weight15,480 - 15,870 kg

WA320-8 Wheel Loaders

Our 2.3-3.2 cu m capacity WA320-8, powered by a new technology fuel efficient Komatsu engine, features our PZ parallel-lift arm system and hydrostatic drive, for maximum versatility and productivity across loading, handling and lifting applications. As with all our wheel loaders, key components are designed and manufactured by Komatsu to work together in an integrated package. And it comes standard with our Komtrax remote monitoring and location system, backed by our Australia-wide service and support network.

Tier 4 Engine KDPF Regeneration
  • 123 kW / 165 HP
  • 15,480 kg
  • 3.0 m³

Current Offers

Versatile PZ Linkage

The WA320-8 combines the best of a Z-Bar linkage and a PZ linkage while maintaining parallel lift. The bucket auto rollback feature tilts the bucket back as the boom raises to eliminate spillage, similar to a traditional Z-bar machine. Return to level can be set for both a bucket and fork or other attachment. Switching between the two is done with a switch in the cab.

Komatsu SmartLoader Logic

Komatsu's SmartLoader Logic controls engine torque to match machine demands. This system optimises engine torque for all applications to minimise fuel consumption. Komatsu's SmartLoader Logic functions automatically and doesn't interfere with operation, saving fuel without decreasing production

Komatsu Diesel Particulate Filter and Selective Catalytic Reduction System

The KDPF and SCR reduces particulate matter and NOx while providing automatic regeneration that does not interfere with daily operation

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