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120 - 2019 - N Am, Global

120 - 2019 - N Am, Global

At a Glance

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
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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.


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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

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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


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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

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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

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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)


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

Air Conditioning System

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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.