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120 GC Motor Grader

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120 GC Motor Grader

Overview

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 cab.

120 GC Motor Grader

120 GC Motor Grader

120 GC Motor Grader

120 GC Motor Grader

120 GC Motor Grader

120 GC Motor Grader
Video The Cat­­® 120 GC Motor Grader - Reliable, Cost-Efficient

The Cat­­® 120 GC Motor Grader – Reliable, Cost-Efficient
Video The Cat® 120 GC Motor Grader - Cab

The Cat® 120 GC Motor Grader – Cab
Video The Cat® 120 GC Motor Grader - Finish Grading

The Cat® 120 GC Motor Grader – Finish Grading
Video The Cat® 120 GC Motor Grader - Slope Grading

The Cat® 120 GC Motor Grader – Slope Grading
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360° Exterior View
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360° Interior View

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  • 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 Electronic Throttle Control which matches engine power and torque to application requirements.
  • The powershift transmission and machine-balanced design ensures you get full drawbar power to the ground with the powerful Cat C4.4 engine.
  • The hydraulic system makes the 120 GC motor grader more precise and predictable for a consistent grade.
  • The all-wheel drive (AWD) option assists with traction and maneuvering the machine. The increased power helps you to handle slopes and loose material better.
  • 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.
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  • 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.
  • Quickly find your current gear in the front display.
  • Easily add a radio to the cab using the built-in mounting location option.
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  • The drawbar circle moldboard stays factory tight providing precision grading pass after pass.
  • The machine structure is built for a long life. It is 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.
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  • 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.
  • The optional four-point safety harness seat belt provides extra protection.
  • 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.
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  • Fuel filters, engine air filters, 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.
  • The new hydraulic system includes integrated work port pressure relief, an integrated dead engine implement lower, and reduction in leak points for safety and quality.
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  • Improve performance and efficiency of the 120 GC 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.
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    • The Cat® C4.4 engine meets U.S. EPA Tier 4 Final, EU Stage V, and South Korea MOE NR Tier 4 Final emission standards.
      •     
    • Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.
      •     
    • Cat® Grade helps reduce fuel burn and greenhouse gas emissions by enabling you to achieve grade faster and more accurately by automating blade actions.
      •     
    • Cat Scheduled Oil Sampling (S O S) Services help reveal excessive wear, contaminated fluids, or other unseen issues that can shorten component life. In many cases, you can extend oil and coolant change intervals by using fluid monitoring. Consult your Cat dealer or the machine’s operation and maintenance manual for more information.
      •     
    • Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
      •     
    • VisionLink displays the CO2 emissions for monitored assets, calculated by fuel type for the Runtime Fuel Burned each day in a selected date range.
      •     
    • Don’t waste fuel idling. Cat VisionLink online fleet monitoring helps you manage idle time and reduce fuel burn and greenhouse gas emissions.
      •     
    • Cat® Reman parts are a sustainable choice. New Cat parts are designed with the potential to have more than one life, so Cat Reman parts are truly remanufactured not just repaired, rebuilt, or reconditioned. Because the process ensures the latest design changes are incorporated into Cat Reman parts, you get like-new quality and outstanding performance at lower cost.
    *Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).
    Net Power – ISO 9249/SAE J1349
    171hp
    Bore
    4.1in
    Stroke
    5in
    Displacement
    268.5in³
    Engine Power AWD (ISO 14396)
    128kW
    Maximum Torque
    544lb/ft
    Derating Altitude
    9842ft
    Engine Model
    Cat® C4.4
    Torque Rise – ISO 9294
    21%
    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, m
    Emissions
    Meets U.S. EPA Tier 4 Final, EU Stage V emission standards
    Operating Weight – Typically Equipped
    31958lb
    Note
    * Typically equipped machine weight is calculated with full fluids, ROPS HVAC CAB, 12′ basic blade, push plate, ripper, 14-24 tires on multi-piece rims and operator.
    Operating Weight – Typically Equipped – Front Axle
    8708lb
    Operating Weight – Typically Equipped – Rear Axle
    23250lb
    Blade Width
    12ft
    Cutting Edge Width
    6in
    End Bit – Width
    152in
    Arc Radius
    16.3in
    Blade Height
    20in
    Throat Clearance
    4.7in
    Engine Crankcase
    2gal (US)
    Hydraulic System
    11.9gal (US)
    Fuel Tank
    71gal (US)
    Diesel Exhaust Fluid Tank (Tier 4 Only)
    3.2gal (US)
    Circle Drive without Slip Clutch
    0.4gal (US)
    Transmission
    4gal (US)
    Cooling System
    10.3gal (US)
    Circle Drive with Slip Clutch
    1.8gal (US)
    Air Conditioning
    The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas.
    All-Wheel Drive (AWD) Weight
    36376lb
    Length of Machine*
    391.4in
    Width
    94.6in
    Maximum Height
    149.1in
    Note
    *Typically equipped with push block and ripper.
    Moldboard Sideshift – Right
    26.1in
    Circle Centershift – Left
    25.8in
    Blade Tip Range – Forward
    40°
    Circle Centershift – Right
    25.8in
    Moldboard Sideshift – Left
    20.2in
    Maximum Lift Above Ground
    16.1in
    Blade Tip Range – Backward
    5°
    Maximum Depth of Cut
    30.5in
    Recyclability
    92%
    Transmission
    Countershaft Torque, Converter Powershift
    Forward/Reverse Gears
    6 Forward / 3 Reverse
    Steering Range – Left/Right
    47.5° left or right
    Articulation Angle – Left/Right
    20� left or right
    • Cab
      • Standard Vinyl Seat
      • Adjustable Steering Wheel/Lever Controls
      • Seat Belt
      • Electric Throttle Control
      • ROPS/FOPS
      • Cab Storage
      • Halogen Lighting
      • Cup Holder
      • Dome Interior Light
      • Coat Hook
      • Product Link
    • Powertrain
      • Cat C4.4 Engine
      • Eco mode
      • On-Demand Fan
      • 43° C (109° F) Ambient Capacity
      • No-Spin Differential
      • Engine Idle Shutdown Timer
    • Safety
      • Parking Brake
      • Signaling/Warning Horn
      • Rearview Mirror
      • Hydraulic Brakes
      • Side View Mirrors
      • Walkways and Grab Rails
    • Drawbar Circle Moldboard
      • Standard
    • Electrical
      • Sealed Alternator
      • Reversing Lights
      • Breaker Panel
      • 750 CCA Standard Duty Batteries
      • Electric Starter
    • Service And Maintenance
      • Grouped Location for Engine Oil and Fuel Filters
      • Extended Life Coolant
    • Guards
      • Transmission Guard
    • Cab
      • Mechanical Suspension Seat
      • Air Suspension Seat
      • Heating/Cooling Cab System
      • Defrost Fans
      • Rear Wiper
      • Base Cab
      • Canopy
      • Cab Plus
      • Entertainment Radio Ready
      • Rear Window Screen
      • Front Wipers
      • Digital Blade Slope Meter
    • Powertrain
      • Reversing Fan
      • Heavy Duty Starter
      • 50� C (122� F) Ambient Capacity
      • All-Wheel Drive (AWD) – available on Stage V machines only
      • Transmission, Autoshift
    • Safety
      • Rear Vision Camera
      • Warning Beacon
      • Secondary Steering System
    • Drawbar Circle Moldboard
      • Circle Drive Slip Clutch
      • Circle Saver
    • Electrical
      • 900 CCA Heavy Duty Batteries
      • 1400 CCA Extreme Duty Batteries
    • Service And Maintenance
      • Reversing Fan
    • Guards
      • Fender Guard
      • Cover, Under Cab Platform
    • Attachments
      • Push Block
      • Ripper
      • Scarifier
      • Front Blade
      • Towing Hitch
      • Front Lift Group From Factory

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