120K2 - UTE CAT

UTE Cat Motor Grader 120K2

UTE Cat Motor Grader 120K2

Cat K Series™ 2 Motor Graders are the machines you can count on when you need to get work done. Cat motor graders help you make the most of your investment by delivering maximum productivity and durability. The Cat C7 engine, direct-drive power shift transmission and load sensing hydraulics work together to ensure the power and precision you need to work in demanding conditions. And Cat motor graders are backed by the world-class Cat dealer network to keep you up and running.






Base Power (1st gear) – Net 108.0 kW
Engine Model Cat® C7 ACERT™
Bore 110.0 mm
Derating altitude 2286.0 m
Displacement 7.2 L
Fan Speed Maximum 1,575 rpm
Gross Power – ISO 14396 116.0 kW
High Ambient Capability 50.0 ° C
Maximum Torque Net 774.0 N·m
Number of cylinders 6
Power – All Gears: 1-8 Gross 118.0 kW
Power – All Gears: 1-8 Gross (metric) 118.0 kW
Power – All Gears: 1-8 Net 108.0 kW
Power – All Gears: 1-8 Net (metric) 108.0 kW
Speed @ rated power 2,000 rpm
Stroke 127.0 mm
Torque Rise 50%

Power Train

Brakes – Parking Air actuated, multiple oil-disc
Brakes – Secondary Dual Circuit
Brakes – Service Air actuated, multiple oil-disc
Brakes – Service, surface area 18606.0 cm2
Forward/Reverse Gears 8 forward/6 reverse
Transmission Direct drive, Powershift

Operating Specifications

Articulation Angle – left/right 20 Degrees
Forward – 1st 4.1 km/h
Forward – 2nd 5.5 km/h
Forward – 3rd 8.0 km/h
Forward – 4th 11.1 km/h
Forward – 5th 17.5 km/h
Forward – 6th 23.7 km/h
Forward – 7th 32.7 km/h
Forward – 8th 47.5 km/h
Reverse – 1st 3.2 km/h
Reverse – 2nd 6.0 km/h
Reverse – 3rd 8.7 km/h
Reverse – 4th 13.8 km/h
Reverse – 5th 25.8 km/h
Reverse – 6th 37.5 km/h
Steering Range – left/right 47.5 Degrees
Top Speed – forward 47.5 km/h
Top Speed – reverse 37.5 km/h
Turning Radius, outside front tires 7.3 m

Hydraulic System

Circuit Type Load Sensing, Closed Center, PPPC
Maximum System Pressure 25500.0 kPa
Optional High Output Pump 210.5 L/min
Pump Output Standard Pump 159.1 L/min
Pump Type Variable Piston
Reservoir Tank Capacity 24.5 L
Standby Pressure 3600.0 kPa


Blade Width 3.7 m
Arc Radius 413.0 mm
Blade Pull – base GVW 8112.0 kg
Blade Pull – maximum GVW 10623.0 kg
Cutting Edge – thickness 16.0 mm
Cutting Edge – width 152.0 mm
Down Pressure – base GVW 5594.0 kg
Down Pressure – maximum GVW 9317.0 kg
End Bit – thickness 16.0 mm
End Bit – width 152.0 mm
Moldboard – height 610.0 mm
Moldboard – thickness 22.0 mm
Throat Clearance 58.0 mm

Blade Range

Blade Tip Range – backward 5 Degrees
Blade Tip Range – forward 40 Degrees
Circle Centershift – left 658.0 mm
Circle Centershift – right 656.0 mm
Maximum Blade Position Angle 90 Degrees
Maximum depth of cut 775.0 mm
Maximum lift above ground 410.0 mm
Maximum shoulder reach outside of tires – left 1764.0 mm
Maximum shoulder reach outside of tires – right 1928.0 mm
Moldboard Sideshift – left 512.0 mm
Moldboard Sideshift – right 663.0 mm


Machine length increase, beam raised 1058.0 mm
Penetration force 4083.0 kg
Pryout force 2108.0 kg
Ripper shank holder spacing 533.0 mm
Ripper shank holders, quantity 5
Ripping depth – maximum 262.0 mm


Mid, V-Type – Scarifier shank holder spacing 116.0 mm
Mid, V-Type – Scarifier shank holders quantity 11
Mid, V-Type – Scarifying depth, maximum 229.0 mm
Mid, V-Type – Working width 1184.0 mm


Circle – blade beam thickness 30.0 mm
Circle – diameter 1530.0 mm
Drawbar – height 127.0 mm
Drawbar – width 76.2 mm
Front axle – height to center 615.0 mm
Front axle – total oscillation per side 32 Degrees
Front axle – wheel lean, left/right 18 Degrees
Front-linear weights – maximum 172.0 kg/m
Front-linear weights – minimum 134.0 kg/m
Front-section modulus – maximum 3681.0 cm3
Front-section modulus – minimum 1619.0 cm3
Front-side plates – thickness 10.0 mm
Front-side plates – width 236.0 mm
Front-top/bottom plate – thickness 22.0 mm
Front-top/bottom plate – width 280.0 mm


Drive chain pitch 44.5 mm
Height 438.0 mm
Sidewall thickness – inner 1.0 mm
Sidewall thickness – outer 16.0 mm
Tandem oscillation – front down 25 Degrees
Tandem oscillation – front up 15 Degrees
Wheel axle spacing 1510.0 mm
Width 172.0 mm

Service Refill

Circle drive housing 7.0 L
Cooling system 40.0 L
Engine Oil 18.0 L
Front wheel spindle bearing housing 0.5 L
Fuel Capacity 305.0 L
Tandem housing (each) 49.0 L
Transmission/Differential/Final Drives 48.0 L


Gross Vehicle Weight – Typically Equipped 13843.0 kg
Gross Vehicle Weight – Maximum 17000.0 kg
Gross Vehicle Weight, Base – front axle 3120.0 kg
Gross Vehicle Weight, Base – rear axle 9013.0 kg
Gross Vehicle Weight, Base – total 12133.0 kg
Gross Vehicle Weight, Maximum – front axle 5197.0 kg
Gross Vehicle Weight, Maximum – rear axle 11803.0 kg
Gross Vehicle Weight, Maximum – total 17000.0 kg
Gross Vehicle Weight, Typically Equipped – front axle 3970.0 kg
Gross Vehicle Weight, Typically Equipped – rear axle 9873.0 kg
Gross Vehicle Weight, Typically Equipped – total 13843.0 kg


Brakes ISO 3450:1996
ROPS/FOPS ISO 3471:1994/ISO 3449:2005
Sound ISO 6394:2008, ISO 6396:2008
Steering ISO 5010:2007

Dimensions (Approximate)

Ground Clearance – Center Front Axle 602.0 mm
Ground Clearance, Trans. Case 341.0 mm
Height to Exhaust Stack 2865.0 mm
Height – Non-ROPS Cab 3321.0 mm
Height – ROPS Cab 3326.0 mm
Height – ROPS Canopy 3326.0 mm
Height – Top of Cylinders 2885.0 mm
Length – Between Tandem Axles 1510.0 mm
Length – Counterweight to Ripper 9769.0 mm
Length – Front Axle to Mid Tandem 5870.0 mm
Length – Front Axle to Moldboard 2598.0 mm
Length – Front Tire to Rear of Machine 8265.0 mm
Width – Outside Front Tires 2449.0 mm
Width – Outside Rear Tires 2439.0 mm
Width – Tire Center Lines 2056.0 mm


Power Train

Reliable performance

Smooth Shifting Transmission

  • Full Electronic Clutch Pressure Control ensures smooth shifting and directional changes.
  • Shift Torque Management helps to smooth gear changes without the use of the inching pedal, helping the operator to remain focused on the task at hand.
  • Load Compensation ensures consistent shift quality regardless of blade or machine load.
  • Optional Autoshift automatically shifts the transmission at optimal points for easier operation.

Oil Disc Brakes – Completely Sealed, Adjustment Free

Oil-bathed, air actuated and spring-released, located at each tandem wheel to eliminate power train braking loads and to reduce service time. The large brake surface area provides dependable braking capability and extended life before rebuild.

Front Axle with Cat Live Spindle Design

Cat sealed spindle keeps the bearings free from contaminants and lubricated in a lightweight oil to reduce owning and operating costs. A larger tapered roller bearing is outboard where the load is greater, extending bearing life.

Cat C7 Engine

Maximum power and efficiency

Power Management

The Cat C7 engine with ACERT Technology uses electronic control, precision fuel delivery and refined air management to provide outstanding performance and lower emissions. The Electronic Throttle Control provides easier, more precise and consistent throttle operation. Engine Over-Speed Protection prevents downshifting until an acceptable safe travel speed has been established.


Balanced hydraulics deliver consistent, precise and responsive control

Balanced Flow, Independent Oil Supply

Hydraulic flow is proportioned to ensure all implements operate simultaneously. Independent oil supply prevents cross-contamination and provides proper oil cooling, which means less heat build-up and extended component life.

Implement Control Valves

Provide outstanding operator “feel” and predictable system response for unmatched implement control. To help maintain exact blade settings, lock valves are built into all control valves. Line relief valves are also incorporated into selected control valves to protect the cylinders from over pressurization.

Load-Sensing Hydraulics

A load sensing variable displacement pump and advanced hydraulic valves provide superior implement control and better machine performance. Continuously matching hydraulic flow and pressure to power demands creates less heat and reduces power consumption.

Consistent and Predictable Movement

The hydraulic system valves are specifically designed for each hydraulic function on the motor grader. They compensate for differences in flow requirements, based on cylinder size and the difference in surface volume between the rod end (blue) and barrel end (red) of the cylinder. The result is predictable, consistent hydraulic speeds whether extending or retracting the cylinder.


Designed for strength and durability

Frame Structure – Provides Consistency and Strength

Front frame is a continuous top and bottom plate construction. Flanged box section design removes welds from high stress areas, improving reliability and durability. The rear frame structure has two box section channels with fully welded differential case for a solid working platform. An integrated bumper ties the rear frame together into a cohesive unit to handle high stress loads.

Drawbar, Circle and Moldboard

The K Series 2 drawbar is designed for high strength and optimum durability for any application. The circle stands up to high stress loads. Raised wear surfaces prevent circle teeth wear against the drawbar. The 64 uniformly spaced circle teeth are flame cut and heat induction hardened to resist wear, and the circle is secured to the drawbar by four support shoes for maximum support. The moldboard provides optimal curvature and large throat clearance that helps move all soil types quickly and efficiently. These features deliver excellent load distribution and minimal material buildup in the circle area while allowing large blade loads to roll freely.

Blade Lift Accumulators

This optional feature uses accumulators to help absorb impact loads to the moldboard by allowing vertical blade travel. Blade lift accumulators reduce unnecessary wear and help to avoid unintended machine movement for increased operator safety.

Work Tools and Attachments

Allows expansion of machine versatility, utilization, and performance

Moldboard Options

Standard moldboard length is 3.7 m (12 ft). Moldboard extensions are available to increase moldboard surface area and extend reach capability.

Ground Engaging Tools

A wide variety of cutting edges and end bits are available, all designed for maximum service life and productivity.

Rear Ripper/Scarifier

The optional ripper/scarifier is made to penetrate tough material fast and rip thoroughly for easier material movement with the moldboard. The ripper includes three shanks with the ability to add two more if needed.

Front Mounted Groups

A front mounted push plate/counterweight or front blade can be ordered.

Mid-Mount Scarifier

Positioned between the front axle and the circle to break up tough material that the blade can then move, all in a single pass. The V-type scarifier can accommodate up to 11 teeth.

Snow Removal Work Tools

Includes snow wings, angle blades, and V-plows. Multiple mounting options are available, increasing machine versatility. (Availability may differ by region.)

Operator Station

Caterpillar sets the standard for comfort, convenience and visibility

Designed for Productivity

K Series 2 cabs are designed to keep operators comfortable, relaxed and productive. Features like low effort pedals and controls, adjustable implement controls and adjustable steering wheel angle help make work easier on the operator. A clear view to the moldboard heel and tandem tires enhance productivity and safe operation. Rocker switches and transmission shifter are backlit for night time operation.

In-dash Instrument Cluster

The instrument panel, with easy-to read, high-visibility gauges and warning lamps, places vital machine information and diagnostic capability in easy view of the operator. The dash includes an engine coolant temperature gauge, an articulation gauge, voltage gauge and fuel level gauge. Service brake air pressure gauges are also standard. Speedometer and tachometer are optional. All major systems are monitored by warning lights.

Additional Cab Features

Additional cab features include storage area, an adjustable control console and coat hook. Optional offerings include power port, air conditioner/heater, suspension seat, defroster fan, sun shade, backup lights, Product Link™ ready, and AccuGrade™ System ready. NOTE: Some attachments are not available in all regions.

Integrated Technologies

Solutions to make work easier and more efficient

Cat AccuGrade

AccuGrade uses positioning and guidance technologies, machine sensors, and automatic blade control to help operators get to grade faster, easier and more efficiently. Digital design plans, real-time cut/fill data, and in-cab guidance give operators detailed information to work more confidently and achieve greater accuracy, in fewer passes, using less material. Operators can stay on grade and improve productivity and accuracy by nearly 50 percent over conventional methods. Grade stakes and checkers are minimized, making the work site safe, efficient, and cost effective. AccuGrade technologies include Cross Slope, Sonic, Laser, GPS, and/or Universal Total Station (UTS).

AccuGrade Attachment Ready Option (ARO)

K Series 2 machines can be equipped with the AccuGrade ARO. It can be ordered as a factory or dealer installed option. The attachment option includes built-in mounting points and internal wiring, making installation of the AccuGrade grade control system faster and easier.

Cat Product Link*

Product Link helps take the guesswork out of equipment management with remote monitoring capabilities for your machine or your entire fleet. Track asset location, hours, fuel usage, diagnostic codes, idle time and more through the secure VisionLink® user interface. Knowing where your equipment is, what it’s doing and how it’s performing enables you or your Cat dealer to manage your fleet in real-time so you can maximize efficiency, improve productivity, and lower operating costs. *Product Link licensing not available in all areas. Please consult your Cat dealer for availability.


Designed with safety in mind

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ROPS/FOPS Cab Offers Low Sound and Vibration Levels

The operator sound pressure level for the cab offered by Caterpillar, when properly installed, maintained and tested with the doors closed, meets or exceeds requirements set forth in ISO 6394:2008. The quiet environment helps improve operator working conditions.

Brake Systems and Machine Protection

Brakes located at each tandem wheel offer the largest total brake surface area in the industry, delivering dependable stopping power and longer brake life. Standard circle drive slip clutch protects the drawbar, circle and moldboard from shock loads when the blade encounters an immovable object. Blade lift accumulators help absorb impact loads to the moldboard by allowing vertical blade travel.

Electrical Disconnect Switch and Engine Shutoff Switch

Disconnect switch provides ground-level lockout of the electrical system to prevent inadvertent machine starts. Engine shutoff allows anyone nearby to shut the machine down in case of an emergency.

Additional Safety Features

Laminated glass on the front windows and lockable doors to reduce theft and vandalism are available with the optional cab. Brake lights, conveniently located grab rails, back up lights and alarm also help ensure a safe work environment.

Complete Customer Support

When uptime counts

Renowned Cat Dealer Support

From helping you choose the right machine to financing and ongoing support, your Cat dealer provides the best in sales and service. Manage your costs with preventive maintenance programs like S•O•SSM fluids analysis, coolant sampling and guaranteed maintenance contracts. Stay productive with best-in-class parts availability. Your Cat dealer can help you boost your profits with operator training. And when it’s time for component replacement, your Cat dealer can help you save even more. Genuine Cat Remanufactured parts carry the same warranty and reliability as new products at savings of 40 to 70 percent for power train and hydraulic components


Thinking generations ahead

  • Meets Bharat Stage III and China Stage II emission standards.
  • Integrated machine systems and technologies improve productivity for greater accuracy, lower fuel use and reduced machine wear.
  • Replaceable wear parts save maintenance time and cost, and extend major component life.
  • Ecology drains help make draining fluids more convenient and help prevent spills.
  • Major components are built to be rebuilt, eliminating waste and saving customers money.
  • A variety of safety features help safeguard operators and others on the job site.

Convenient service points make routine maintenance quick and easy

Grouped Service Points on the left side to help ensure proper maintenance

Easy access to service areas speeds up maintenance and ensures that routine service is performed on time. Ecology drains shorten service times and help prevent spills. Radiator cleanout access gives the operator the ability to clear away debris and other materials that build up around the radiator.

Extended Service Intervals Reduce Downtime, Operating Cost

  • 500 hour engine oil changes
  • 4,000 hour hydraulic oil changes
  • 12,000 hour engine coolant changes

Diagnostics and Machine Monitoring

The dash cluster panel provides enhanced machine information and diagnostic capability, which allows faster servicing of the transmission and engine.

O-Ring Face Seals

O-Ring face seals create a reliable connection and are used in all hydraulic circuits to minimize the possibility of oil leaks.

Separate Wiring Harnesses

Modular harness design provides simple disconnects for major machine repairs or rebuilds which reduces machine downtime.

Cat Electronic Technician

Cat Electronic Technician is a two-way communication tool that gives service technicians easy access to stored diagnostic data, reducing machine downtime and lowering operating costs.


120K2 Standard Equipment


  • Alternator, 115 Ampere
  • Backup alarm, reversing lights
  • Batteries, maintenance free 750 CCA
  • Electrical system, 24 volt
  • Horn, electric
  • Lights, stop and tail
  • Motor, starting
  • Product Link Ready
  • Working lights


  • Accelerator
  • Control console, adjustable
  • Gauge cluster (includes voltmeter, articulation, engine coolant temperature, air brake pressure and fuel level)
  • Guard rails, operator station
  • Hydraulic controls, load sensing (right/left blade lift, circle drive, centershift, sideshift, front wheel lean and articulation)
  • Indicator lights (includes high beam, LH and RH turn, low engine oil pressure, throttle lock, check engine, transmission filter bypass and check, centershift pin, brake air pressure, parking brake engaged, auto shift)
  • Key start/stop switch
  • Meter, hour
  • Power steering, hydraulic
  • Seat, vinyl-covered static
  • Seat belt
  • Steering wheel, tilt, adjustable
  • Storage area, cooler/lunch box
  • Throttle, electronic control


  • Air cleaner, dry type radial seal with service indicator and automatic dust ejector
  • Air to air after cooler (ATAAC)
  • Blower fan
  • Brakes, oil disc, four-wheel air actuated
  • Differential with lock/unlock
  • Engine, Cat C7 with ACERT Technology, diesel with automatic engine derate and idle control. Certified to Bharat Stage III and China Stage II emissions standards.
  • Fuel water separator
  • Muffler, under hood
  • Parking brake, multi-disc, sealed and oil cooled
  • Prescreener
  • Priming pump, fuel, resiliently mounted
  • Sediment drain, fuel tank
  • Tandem drive
  • Transmission, 8 speed forward and 6 speed reverse, power shift, direct drive with electronic shift control and overspeed protection


  • Bumper, rear
  • CD ROM Parts Book
  • Circle drive slip clutch
  • Cutting edges, 152 mm × 16 mm (6 in × 5/8 in) curved DH-2 steel
  • Doors, Engine compartment
  • Drawbar, 4 shoe replaceable nylon composite wear strips
  • Endbits, 16 mm (5/8 in) DH-2 steel
  • Frame, articulated with safety lock
  • Fuel tank, 305 L (80.6 gal)
  • Ground level engine shutdown
  • Link bar, 7 position
  • Moldboard, 3658 mm × 610 mm × 22 mm (12 ft × 24 in × 7/8 in) blade with hydraulic sideshift and mechanical tip
  • S·O·S ports, engine, hydraulic, transmission and cooling
  • Toolbox with padlock
  • Vandalism protection – including cap locks for hydraulic tank, radiator access cover, fuel tank, engine and transmission oil check/fill and lockable battery boxes.


  • Extended Life Coolant to -35° C (-30° F)

120K2 Optional Equipment


  • Guard, transmission


  • Air conditioner with heater
  • Heater, cab


  • Cab, ROPS*
  • Cab, Non-ROPS*
  • Canopy, ROPS*
  • Seat, vinyl adjustable
  • Seat, cloth, contour
  • Fan, defroster, front window
  • Fan, defroster, rear window
  • Sun shade, rear
  • Wiper/washer, rear
  • Wipers, intermittent front
  • Mirrors, dual inside
  • Mirrors, outside mounted
  • Power port, 12V accessory
  • Radio ready entertainment
  • Tachometer/Speedometer
  • * Weights represent changes to Typically Equipped machine weights.


  • Autoshift


  • Product Link
  • Snow Wing Mounting, frame-ready
  • AccuGrade ARO
  • Dryer, air
  • Push plate, counterweight*
  • Accumulator, blade lift
  • Battery, extreme duty (1400 CCA)
  • Ether, starting aid
  • Heater, engine coolant, 220V
  • * Weights represent changes to Typically Equipped machine weights.


  • Pump, hydraulic, high capacity (210 L/min 55.7 gal/min)
  • Hydraulic arrangements with one or more additional hydraulic valves are available for rear ripper, mid-mount scarifier, dozer, snow plow and snow wing.


  • Moldboard, Deluxe: Blade, 3658 mm × 610 mm × 22 mm (12′ × 24″ × 7/8″) with hydraulic side shift and tip and 5/8″ end bits cutting edge 203 mm × 19 mm (8″ × 3/4″)
  • Endbits, overlay, reversible pair for use with 203 mm (8″) cutting edges

Selection of right Construction Equipment for your Project