120 GC

120 GC

The Cat® 120 GC Motor Grader is easy to own and operate. A demand fan and standard Eco mode reduces fuel consumption while open access to maintenance points makes service quick and simple. Control the blade with consistent precision using lever controls from the comfort of the all new cab.


Productive and Economical

  • Increase your fuel economy up to 5% with the standard ECO mode.
  • The on-demand fan reduces fuel consumption and under-hood heat for longer component life.
  • Improve productivity with the Electronic Throttle Control which matches engine power and torque to application requirements.
  • The powershift transmission and machine balanced design ensures that you get full drawbar power to the ground with the Cat C4.4 engine.
  • The hydraulic system makes the machines more precise and predictable for a consistent grade.
  • The Digital Blade Slope Meter option shows you the grade without relying on manual grade checkers.
  • Product Link™ provides location, machine hours, fuel usage, productivity, idle time, diagnostic codes, and other machine data ondemand through the VisionLink® online interface, which helps you improve jobsite efficiency with lower operating costs.

Cab Keeps You Comfortable All Day Long

  • Choose your comfort level in the cab with standard, mechanical suspension or air suspension seat.
  • Easily adjust the control console and steering wheel.
  • The high capacity Heating, Ventilation and Air Conditioning (HVAC) system option circulates fresh air, prevents dust entry, and keeps windows from fogging.
  • Easily add a radio to the cab using the built-in mounting location option.

Reliable Performance

  • The drawbar circle moldboard stays factory tight providing precision grading pass after pass.
  • The machine structure is built for a long life. It’s designed to use several types of work tools, such as a front blade.
  • A slip clutch option protects the circle drive if the machine strikes an immovable object.
  • The front axle maximizes bearing life while also minimizing maintenance.
  • Reduce daily greasing requirements and costly repairs to your circle and pinion with the Circle Saver option.

Safely Home Every Day

  • See what’s behind you with the rear camera option. The dedicated display can be always on to ensure a safe workenvironment.
  • In the event of an engine stall, count on the secondary steering system option to help stop the machine safely.
  • Use three points of contact when entering and exiting the machine with strategically placed walkways and grab rails.
  • Ground level engine shut-off switch stops all fuel to the engine when activated and shuts down the machine.
  • See the rear of your machine with side and rearview mirrors.
  • Work past sundown using the strategically placed lights for nighttime visibility.

Maintenance Made Easy

  • Filters, such as fuel, engine air, and oil filters, are grouped together for easy access and preventative maintenance.
  • The standard drawbar circle moldboard increases durability using hardened circle teeth and replaceable wear inserts to help sustain factory tightness.
  • Brake adjustments are maintenance free and easily accessible.
  • The standard bottom guard shields the transmission and filter. Optional guarding protects your machine from damage in demanding applications.
  • Spend less time cleaning the cooling system with the reversing fan option, which reduces costs when cleaned once per week for more uptime.

Attachments to Fit Your Needs

  • Improve the performance and efficiency of your machine with the push block option.
  • Ripper and scarifier options are available to assist with grading hard ground.
  • Add the front blade option to spread more material faster.
  • The optional tow hitch allows you to tow equipment or implements behind the machine.

Standard Equipment

  • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Standard Seat
  • Steering Wheel/Lever Controls
  • Information Display Screen
  • Product Link
  • Cat C4.4
  • ECO mode
  • On-Demand fan
  • Standard
  • Parking brake
  • Signaling/warning horn
  • Rearview mirror
  • Hydraulic brakes
  • Side view mirrors
  • Walkways and Grab Rails

Additional information

Offering Type

Engine - Net Power - ISO 9249/SAE J1349

128 kW ( 171 HP )

Engine - Maximum Torque

738 N·m ( 544 lb/ft )

Engine Model

Cat® C4.4

Engine - Bore

105 mm ( 4.1 in )

Engine - Displacement

4.4 l ( 268.5 in³ )

Engine - Torque Rise - ISO 9294


Engine - Stroke

127 mm ( 5 in )

Engine - Derating Altitude

3000 m ( 9,842 ft )

Engine - Emissions

Meets India CEV Stage V emission standards

Engine - Note (1)

Net power is tested per ISO 9249, SAE J1349, and EEC 80/1269 standards in effect at the time of manufacture. 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. Power as declared per ISO 14396.

Weights - Operating Weight - Typically Equipped

14254 kg ( 31424 lb )

Moldboard - Blade Width

3.7 m ( 12 ft )

Dimensions - Length of Machine*

9941 mm ( 391.4 in )

Dimensions - Width

2402 mm ( 94.6 in )

Dimensions - Maximum Height

3787.8 mm ( 149.1 in )

Dimensions - Note

*Typically equipped with push block and ripper.

Moldboard - Cutting Edge Width

152 mm ( 6 in )

Moldboard - Throat Clearance

112 mm ( 4.7 in )

Moldboard - Blade Height

580 mm ( 20 in )

Moldboard - End Bit - Width

6 mm ( 152 in )

Moldboard - Arc Radius

413 mm ( 16.3 in )

Blade Range - Blade Tip Range - Backward

Blade Range - Circle Centershift - Right

656 mm ( 25.8 in )

Blade Range - Moldboard Sideshift - Right

663 mm ( 26.1 in )

Blade Range - Circle Centershift - Left

656 mm ( 25.8 in )

Blade Range - Moldboard Sideshift - Left

512 mm ( 20.2 in )

Blade Range - Maximum Depth of Cut

775 mm ( 30.5 in )

Blade Range - Blade Tip Range - Forward


Blade Range - Maximum Lift Above Ground

410 mm ( 16.1 in )

Service Refill Capacities - Circle Drive without Slip Clutch

1.5 l ( 0.4 gal (US) )

Service Refill Capacities - Fuel Tank

269 l ( 71 gal (US) )

Service Refill Capacities - Hydraulic System

55 l ( 14.5 gal (US) )

Service Refill Capacities - Circle Drive with Slip Clutch

7 l ( 1.8 gal (US) )

Service Refill Capacities - Engine Crankcase

7.6 l ( 2 gal (US) )

Service Refill Capacities - Cooling System

39 l ( 10.3 gal (US) )

Service Refill Capacities - Transmission

17 l ( 4.5 gal (US) )

  • Technology Kits

    Cat® Detect with Smart Camera

    View Details
  • Technology Kits

    Cat® Detect with Surround Cameras

    View Details
Select Up To 3 Models To Compare