• Engine

    Model Komatsu SAA4D95LE-7
    Type Water-cooled, 4-cycle, direct injection
    Aspiration Variable flow, turbocharged, air-to-air aftercooled
    Number of Cylinders 4
    Bore x Stroke 95 mm x 115 mm
    Piston Displacement 3.26 ltr
    Horsepower, Gross - SAE J1995 72.6 kW
    Horsepower, Net - ISO 9249 / SAE J1349 72.5 kW
    Rated RPM 2050
    Fan drive method Mechanical with viscous clutch
    Emissions certification EPA Tier 4
  • Hydraulic System

    Type HydrauMind System
    Number of selectable working modes 6
    Main pump type Variable capacity piston type
    Pump for Boom, arm, bucket, swing, and travel circuits
    Maximum flow 242 ltr/min
    Hydraulic Motors  
    Travel 2 x piston motor with parking brake
    Swing 1 x piston motor with swing holding brake
    Relief Valve Setting  
    Implement circuits 355 kgf/cm3
    Travel circuit 355 kgf/cm3
    Swing circuit 298 kgf/cm3
    Pilot circuit 33 kgf/cm3
    Hydraulic Cylinders Bore x Stroke x Rod diameter
    Boom 2-105 mm x 1055 mm x 70mm
    Arm 1-110 mm x 1175 mm x 75 mm
    Bucket 1-95 mm x 885 mm x 65 mm


  • Drives and Brakes

    Steering control Two levers with pedals
    Drive method Fully hydrostatic
    Maximum drawbar pull 123 kN 12500 kgf
    Gradeability 70 %
    Travel speeds 2.9 / 5.1 km/h
    Service brake Hydraulic lock
    Parking brake Wet, multiple-disc
  • Swing System

    Driven by Hydraulic motor  
    Swing reduction Planetary gear
    Swing circle lubrication Grease-bathed
    Service brake Hydraulic lock
    Swing lock Wet, multiple-disc brake
    Swing speed 11.0 rpm
    Swing torque 2991 kg.m
  • Undercarriage

    Center frame X-frame leg
    Track frame Box-bathed
    Track type Sealed track
    Track adjuster Hydraulic
    Number of shoes (each side) 43
    Number of carrier rollers (each side) 1
    Number of track rollers (each side) 7
    Shoe size & type 500 mm steel city pattern
  • Coolant & Lubricant capacity

    Fuel tank 200 ltr
    Coolant 17.7 ltr
    Engine 11.5 ltr
    Final drive, each side 2.1 ltr
    Swing drive 2.5 ltr
    Hydraulic tank 69.0 ltr
    DEF tank 12.6 ltr
  • Weights

    Operating weight 15,140 – 15,500 kg
  • Dimensions (transport position)

    Length, overall (mm) 7260
    Track length on ground (mm) 2880
    Track gauge (mm) 1990
    Overall track width (mm) 2490
    Overall height (mm) 2850
    Ground clearance (mm) 395
  • Operation

    Boom size (m) & type 4.6 standard
    Arm size (m) & type 2.5 standard
    Arm crowd force - ISO (kgf) 6300
    Bucket crowd force - ISO (kgf) 9500
    Digging depth - maximum (mm) 5480
    Digging reach - maximum (mm) 8300
    Maximum reach @ ground level 8180
    Swing radius (mm) 1980

PC138US-11 Excavators

When you need high productivity and plenty of digging power in confined spaces, our PC138US-11 excavator – now powered by a Komatsu low emission Tier 4-Compliant engine – is the perfect choice. As with all our construction excavators, 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
  • 72.5 kW / 97 HP
  • 15,500 kg
  • 0.53 m³

Current Offers

Short Tail Swing Radius

Short tail swing radius of the PC138US-11 allows the machine to work in more confined areas than a conventional machine.

Fuel consumption reduced

Fuel consumption is reduced up to 9% using a temperature controlled viscous fan clutch and improved engine and hydraulic system efficiencies.

Tier 4 Final Engine

New regulations require the reduction of NOx emissions to one tenth or below from the preceding regulations. Komatsu has deployed a new Selective Catalytic  Reduction (SCR) device for use in the PC138US-11

Take the next steps