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120 - 2019 - N Am, Global

Net Power Range (Tier 4)

139 HP

Lever/Steering Wheel Weight* Tier 4

35067 lb

Basic Blade Width

12 ft


The Next Generation Cat® 120 motor grader offers the options of joystick or steering wheel and lever controls with the all-wheel drive option. Save up to 15 percent in fuel consumption. Cab and comfort options help improve performance. Factory integrated technology options ensure grade for any project.



360° View


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  • Air Conditioning System
    Spec Value
    Note The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.6 kg of refrigerant which has a carbon dioxide equivalent of 2.288 metric tonnes.
  • Engine
    Spec Value
    Net Power Range (Tier 4) 139 HP
    Standard Capability 122 °F
    Number of Cylinders 6
    Derating Altitude (AWD) 5499 ft
    Torque Rise - ISO 9294 42%
    Note (2) Net power advertised is the power available at rated speed of 2,000 rpm, measured at the flywheel when engine is equipped with fan, air cleaner, muffler and alternator.
    Displacement 427.8 in³
    Derating Altitude 9842.5 ft
    Maximum Torque - ISO 9249 606 lb/ft
    All-Wheel Drive Net Power Range (Tier 3) 130 HP
    Net Power Range (Tier 3) 130 HP
    Note (3) Power as declared per ISO 14396
    Bore 4.1 in
    Engine RPM 2,000
    Maximum Torque - AWD On 611 lb/ft
    Note (1) Net power is tested per ISO 9249, SAE J1349, and EEC 80/1269 Standards in effect at the time of manufacture."
    Engine Model Cat 7.1
    Stroke 5.3 in
    Emissions U.S. EPA Tier 4 Final/EU Stage V - U.S. EPA Tier 3/EU Stage IIIA
  • Machine Weight
    Spec Value
    Lever/Steering Wheel Weight* Tier 4 35067 lb
    Joystick All-Wheel Drive (AWD) Weight* Tier 4 36846 lb
    Lever/Steering Wheel All-Wheel drive (AWD) Weight* Tier 4 36731 lb
    Note (1) *Typically equipped includes 4267 mm (14 ft) plus blade, tires, push plate, ripper, bottom guard, operator, and full fluids.
    Joystick Weight* Tier 4 35358 lb
  • Dimensions
    Spec Value
    Basic Blade Width 12 ft
    Length of Machine* 387 in
    Width All Wheel Drive (AWD) 2551 mm
    Width 102 in
    Note *Typically equipped with push block and ripper.
    Maximum Height 136.4 in
  • Blade Range
    Spec Value
    Maximum Depth of Cut 30.5 in
    Moldboard Side Shift Left 20.1 in
    Circle Center Shift Left 26 in
    Blade Tip Range Backward 5
    Maximum Lift Above Ground 16.1 in
    Circle Center Shift Right 26 in
    Blade Tip Range Forward 40
    Maximum Shoulder Reach Right 76 in
    Moldboard Side Shift Right 26.1 in
    Maximum Shoulder Reach Left 69.4 in
  • Service Refill Capacities
    Spec Value
    Engine Crankcase 4.8 gal (US)
    Diesel Exhaust Fluid Tank (Tier 4 Only) 5 gal (US)
    Hydraulic System 25.6 gal (US)
    Fuel Tank 65 gal (US)
    Transmission and Differential 9 gal (US)
    Circle Drive 1.8 gal (US)
    Cooling System 14 gal (US)
  • Moldboard
    Spec Value
    Arc Radius 16.3 in
    End Bit 6 in
    Cutting Edge 6 in
    Blade Width 12 ft
    Blade Height 24 in
    Throat Clearance 4.1 in

Standard Equipment


  • Standard and optional equipment may vary. Consult your Cat dealer for details.


  • Vinyl Seat
  • ROPS, Standard Sound Suppression
  • Heating/Cooling Cab System
  • Base Cab
  • 254 mm (10 in) Hybrid Information Display
  • Halogen Lighting

Cat Technology

  • Product Link


  • Cat C7.1
  • ECO Mode
  • Hydraulic Demand Fan

Drawbar Circle Moldboard

  • Standard
  • Circle Drive Slip Clutch


  • Parking brake
  • Signaling/warning horn
  • Rearview mirror
  • Hydraulic brakes
  • Secondary steering system
  • Side view mirrors
  • Walkways and Grab Rails

Optional Equipment


  • Standard and optional equipment may vary. Consult your Cat dealer for details.


  • Cloth or Leather Seat
  • Steering Wheel/Lever Controls
  • Joystick Controls
  • Rear Wiper
  • Comfort Plus
  • Premium Plus
  • Seatbelt Indicator
  • Heated/Cooled Seat
  • Bluetooth/Auxiliary Radio
  • LED Lighting
  • Rear Window Screen

Cat Technology

  • Cat Grade with Digital Blade Slope Meter
  • Cat Grade with Cross Slope Indicate
  • Cat Grade with Cross Slope
  • Cat Grade Attachment Ready Option (ARO)
  • Stable Blade
  • Remote Services


  • All-Wheel Drive (AWD)

Drawbar Circle Moldboard

  • Top Adjust
  • Circle Saver


  • Rearview camera


  • Counterweight
  • Push Block
  • Ripper
  • Scarifier
  • Front Lift Group
  • Front Blade
  • Front Blade