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Motor Graders

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
Maximum Depth of Cut 30.5 in

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, such as Cat Grade with Cross Slope and Stable Blade options ensure grade for any project.

Engine

Net Power Range (Tier 4)
139HP
Standard Capability
122°F
Number of Cylinders
6
Derating Altitude (AWD)
5499ft
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
427.8in³
Derating Altitude
9842.5ft
Maximum Torque - ISO 9249
606lb/ft
All-Wheel Drive Net Power Range (Tier 3)
130HP
Net Power Range (Tier 3)
130HP
Note (3)
Power as declared per ISO 14396
Bore
4.1in
Engine RPM
2,000
Maximum Torque - AWD On
611lb/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
5.3in
Emissions
U.S. EPA Tier 4 Final/EU Stage V - U.S. EPA Tier 3/EU Stage IIIA

Machine Weight

Lever/Steering Wheel Weight* Tier 4
35067lb
Joystick All-Wheel Drive (AWD) Weight* Tier 4
36846lb
Lever/Steering Wheel All-Wheel drive (AWD) Weight* Tier 4
36731lb
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
35358lb

Dimensions

Basic Blade Width
12ft
Length of Machine*
387in
Width All Wheel Drive (AWD)
2551mm
Width
102in
Note
*Typically equipped with push block and ripper.
Maximum Height
136.4in

Blade Range

Maximum Depth of Cut
30.5in
Moldboard Side Shift Left
20.1in
Circle Center Shift Left
26in
Blade Tip Range Backward
5
Maximum Lift Above Ground
16.1in
Circle Center Shift Right
26in
Blade Tip Range Forward
40
Maximum Shoulder Reach Right
76in
Moldboard Side Shift Right
26.1in
Maximum Shoulder Reach Left
69.4in

Service Refill Capacities

Engine Crankcase
4.8gal (US)
Diesel Exhaust Fluid Tank (Tier 4 Only)
5gal (US)
Hydraulic System
25.6gal (US)
Fuel Tank
65gal (US)
Transmission and Differential
9gal (US)
Circle Drive
1.8gal (US)
Cooling System
14gal (US)

Moldboard

Arc Radius
16.3in
End Bit
6in
Cutting Edge
6in
Blade Width
12ft
Blade Height
24in
Throat Clearance
4.1in

Standard Equipment:

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Cab
    • Vinyl Seat
    • ROPS, Standard Sound Suppression
    • Heating/Cooling Cab System
    • Base Cab
    • 254 mm (10 in) Hybrid Information Display
    • Halogen Lighting
  • Cat Connect Technology
    • Product Link
  • Engine
    • Cat C7.1
    • ECO Mode
    • Hydraulic Demand Fan
  • Drawbar Circle Moldboard
    • Standard
    • Circle Drive Slip Clutch
  • Safety
    • Parking brake
    • Signaling/warning horn
    • Rearview mirror
    • Hydraulic brakes
    • Secondary steering system
    • Side view mirrors
    • Walkways and Grab Rails

Optional Equipment:

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Cab
    • 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 Connect 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
  • Engine
    • All-Wheel Drive (AWD)
  • Drawbar Circle Moldboard
    • Top Adjust
    • Circle Saver
  • Safety
    • Rearview camera
  • Versatility
    • Counterweight
    • Push Block
    • Ripper
    • Scarifier
    • Front Lift Group
    • Front Blade
    • Front Blade