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Overview

The K Series Motor Grader is the machine 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.

Engine

Units:
Base Power (1st Gear) - Net 125.0 HP 93.0 kW Less
Engine Model Cat® C7 ACERT™ Cat® C7 ACERT™ Less
VHP - Gears 1-2, Net 125.0 HP 93.0 kW Less
VHP - Gear 3, Net 135.0 HP 101.0 kW Less
VHP - Gears 4-8, Net 145.0 HP 108.0 kW Less
VHP - Gears 1-2, Gross 138.0 HP 103.0 kW Less
VHP - Gear 3, Gross 148.0 HP 110.0 kW Less
VHP - Gears 4-8, Gross 158.0 HP 118.0 kW Less
Displacement 439.0 in³ 7.2 l Less
Bore 4.1 in 105.0 mm Less
Stroke 5.0 in 127.0 mm Less
Speed at Rated Power 2000.0 r/min 2000.0 r/min Less
Number of Cylinders 6 6 Less
Derating Altitude 10000.0 ft 3048.0 m Less
High - Ambient Capability 122.0 °F 50.0 °C Less
VHP Range - Net 93-108 kW (125-145 hp) 93-108 kW (125-145 hp) Less
Base Power (1st Gear) - Net - Metric 127.0 HP 93.0 kW Less
Fan Speed Maximum 1575.0 r/min 1575.0 r/min Less
Maximum Torque - Net 571.0 ft-lb 774.0 N·m Less
Torque Rise 50.0 % 50.0 % Less

Power Train

Forward/Reverse Gears 8 forward/6 reverse 8 forward/6 reverse Less
Transmission Direct drive, Powershift Direct drive, Powershift Less
Brakes - Service Air actuated, multiple oil-disc Air actuated, multiple oil-disc Less
Brakes - Service - Surface Area 2884.0 in² 18606.0 cm² Less
Brakes - Parking Air actuated, multiple oil-disc Air actuated, multiple oil-disc Less
Brakes - Secondary Dual Circuit Dual Circuit Less

Operating Specifications

Top Speed - Forward 29.5 mile/h 47.5 km/h Less
Top Speed - Reverse 23.3 mile/h 37.5 km/h Less
Turning Radius - Outside Front Tires 23.95 ft 7.3 m Less
Steering Range - Left/Right 47.5 ° 47.5 ° Less
Articulation Angle - Left/Right 20.0 ° 20.0 ° Less
Forward - 1st 2.5 mile/h 4.1 km/h Less
Forward - 2nd 3.4 mile/h 5.5 km/h Less
Forward - 3rd 5.0 mile/h 8.0 km/h Less
Forward - 4th 6.9 mile/h 11.1 km/h Less
Forward - 5th 10.8 mile/h 17.5 km/h Less
Forward - 6th 14.8 mile/h 23.7 km/h Less
Forward - 7th 20.3 mile/h 32.7 km/h Less
Forward - 8th 29.5 mile/h 47.5 km/h Less
Reverse - 1st 2.0 mile/h 3.2 km/h Less
Reverse - 2nd 3.7 mile/h 6.0 km/h Less
Reverse - 3rd 5.4 mile/h 8.7 km/h Less
Reverse - 4th 8.6 mile/h 13.8 km/h Less
Reverse - 5th 16.0 mile/h 25.8 km/h Less
Reverse - 6th 23.3 mile/h 37.5 km/h Less

Hydraulic System

Circuit Type Load Sensing, Closed Center, PPPC Load Sensing, Closed Center, PPPC Less
Pump Type Variable Piston Variable Piston Less
Maximum System Pressure 3699.0 psi 25500.0 kPa Less
Standby Pressure 522.1 psi 3600.0 kPa Less
Reservoir Tank Capacity 6.5 gal (US) 24.5 l Less
Optional High Output Pump 55.6 gal/min 210.5 l/min Less
Pump Output - Standard Pump 42.0 gal/min 159.1 l/min Less

Moldboard

Blade Width 12.0 ft 3.7 m Less
Moldboard - Height 24.0 in 610.0 mm Less
Moldboard - Thickness 0.9 in 22.0 mm Less
Arc Radius 16.3 in 413.0 mm Less
Throat Clearance 2.3 in 58.0 mm Less
Cutting Edge Width 6.0 in 152.0 mm Less
Cutting Edge Thickness 0.6 in 16.0 mm Less
End Bit - Width 6.0 in 152.0 mm Less
End Bit - Thickness 0.6 in 16.0 mm Less
Blade Pull - Maximum GVW 23420.0 lb 10623.0 kg Less
Down Pressure - Maximum GVW 20540.0 lb 9317.0 kg Less
Blade Pull - Base GVW 17884.0 lb 8112.0 kg Less
Down Pressure - Base GVW 12332.0 lb 5594.0 kg Less

Blade Range

Circle Centershift - Right 25.8 in 656.0 mm Less
Circle Centershift - Left 25.8 in 658.0 mm Less
Moldboard Sideshift - Right 26.0 in 663.0 mm Less
Moldboard Sideshift - Left 20.2 in 512.0 mm Less
Maximum Blade Position Angle 90.0 ° 90.0 ° Less
Blade Tip Range - Forward 40.0 ° 40.0 ° Less
Blade Tip Range - Backward 5.0 ° 5.0 ° Less
Maximum Shoulder Reach Outside of Tires - Right 75.9 in 1928.0 mm Less
Maximum Shoulder Reach Outside of Tires - Left 69.4 in 1764.0 mm Less
Maximum Lift Above Ground 16.1 in 410.0 mm Less
Maximum Digging Depth 30.5 in 775.0 mm Less

Ripper

Ripping Depth - Maximum 10.3 in 262.0 mm Less
Ripper Shank Holders, Quantity 5 5 Less
Ripper Shank Holder Spacing 21.0 in 533.0 mm Less
Penetration Force 9001.0 lb 4083.0 kg Less
Pry-Out Force 4648.0 lb 2108.0 kg Less
Machine Length Increase, Beam Raised 41.7 in 1058.0 mm Less

Scarifier

Mid, V-Type - Working Width 46.6 in 1184.0 mm Less
Mid, V-Type - Scarifying Depth, Maximum 9.0 in 229.0 mm Less
Mid, V-Type - Scarifier Shank Holders Quantity 11 11 Less
Mid, V-Type - Scarifier Shank Holder Spacing 4.6 in 116.0 mm Less

Frame

Front-Section Modulus - Maximum 225.0 in³ 3681.0 cm³ Less
Front-Section Modulus - Minimum 99.0 in³ 1619.0 cm³ Less
Circle - Diameter 60.2 in 1530.0 mm Less
Circle - Blade Beam Thickness 1.2 in 30.0 mm Less
Drawbar - Height 5.0 in 127.0 mm Less
Drawbar - Width 3.0 in 76.2 mm Less
Front Axle - Height to Center 24.2 in 615.0 mm Less
Front Axle - Wheel Lean - Left/Right 18.0 ° 18.0 ° Less
Front Axle - Total Oscillation per Side 32.0 ° 32.0 ° Less
Front-Top/Bottom Plate - Width 11.0 in 280.0 mm Less
Front-Top/Bottom Plate - Thickness 0.9 in 22.0 mm Less
Front-Side Plates - Width 9.3 in 236.0 mm Less
Front-Side Plates - Thickness 0.4 in 10.0 mm Less
Front-Linear Weights - Minimum 90.0 lb/ft 134.0 kg/m Less
Front-Linear Weights - Maximum 115.0 lb/ft 172.0 kg/m Less

Tandems

Height 17.24 in 438.0 mm Less
Width 6.77 in 172.0 mm Less
Sidewall Thickness - Inner 1.0 in 1.0 mm Less
Sidewall Thickness - Outer 0.63 in 16.0 mm Less
Drive Chain Pitch 1.75 in 44.5 mm Less
Wheel Axle Spacing 59.45 in 1510.0 mm Less
Tandem Oscillation - Front Up 15.0 ° 15.0 ° Less
Tandem Oscillation - Front Down 25.0 ° 25.0 ° Less

Service Refill

Fuel Capacity 80.6 gal (US) 305.0 l Less
Cooling System 10.6 gal (US) 40.0 l Less
Engine Oil 4.8 gal (US) 18.0 l Less
Transmission - Differential - Final Drives 12.7 gal (US) 48.0 l Less
Tandem Housing - Each 12.9 gal (US) 49.0 l Less
Front Wheel Spindle Bearing Housing 0.1 gal (US) 0.5 l Less
Circle Drive Housing 1.9 gal (US) 7.0 l Less

Weights

Gross Vehicle Weight - Typically Equipped 30519.0 lb 13843.0 kg Less
Gross Vehicle Weight - Base - Total 26749.0 lb 12133.0 kg Less
Gross Vehicle Weight - Maximum - Total 37478.0 lb 17000.0 kg Less
Gross Vehicle Weight - Typically Equipped - Front Axle 8751.0 lb 3970.0 kg Less
Gross Vehicle Weight - Typically Equipped - Rear Axle 21768.0 lb 9873.0 kg Less
Gross Vehicle Weight - Typically Equipped - Total 30519.0 lb 13843.0 kg Less
Gross Vehicle Weight - Base - Front Axle 6878.0 lb 3120.0 kg Less
Gross Vehicle Weight - Base - Rear Axle 19871.0 lb 9013.0 kg Less
Gross Vehicle Weight - Maximum - Front Axle 11456.0 lb 5197.0 kg Less
Gross Vehicle Weight - Maximum - Rear Axle 26022.0 lb 11803.0 kg Less

Dimensions

Height - ROPS Cab 131.0 in 3326.0 mm Less
Height - Non-ROPS Cab 130.7 in 3321.0 mm Less
Height - ROPS/Canopy 131.0 in 3326.0 mm Less
Ground Clearance - Center Front Axle 23.7 in 602.0 mm Less
Length - Between Tandem Axles 59.4 in 1510.0 mm Less
Length - Front Axle to Moldboard 102.3 in 2598.0 mm Less
Length - Front Axle to Mid Tandem 231.1 in 5870.0 mm Less
Length - Front Tire to Rear of Machine 325.4 in 8265.0 mm Less
Length - Counterweight to Ripper 384.6 in 9769.0 mm Less
Ground Clearance - Trans. Case 13.4 in 341.0 mm Less
Height - Top of Cylinders 113.6 in 2885.0 mm Less
Height - Exhaust Stack 112.8 in 2865.0 mm Less
Width - Tire Center Lines 80.9 in 2056.0 mm Less
Width - Outside Rear Tires 96.0 in 2439.0 mm Less
Width - Outside Front Tires 96.4 in 2449.0 mm Less

Standards

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

Weights - Typically Equipped

Operating Weight - Typically Equipped 13843.0 lb 30519.0 kg Less
Gross Vehicle Weight 30519.0 lb 13843.0 kg Less

Gross Vehicle Weight - Maximum

Gross Vehicle Weight 37478.0 lb 17000.0 kg Less

Power Train

Cat C7 Engine

Hydraulics

Structures/Drawbar-Circle-Moldboard

Work Tools and Attachments

Operator Station

Integrated Technologies

Safety

Complete Customer Support

Sustainability

Serviceability

120K Standard Equipment

ELECTRICAL
  • 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

OPERATOR ENVIRONMENT
  • 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

POWER TRAIN
  • 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. Meets non-current U.S. EPA Tier 2 and EU Stage II emission 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
  • VHP (Variable Horse Power)

OTHER STANDARD EQUIPMENT
  • 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.

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

120K Optional Equipment

GUARDS
  • Guard, transmission

OPERATOR ENVIRONMENT
  • Air conditioner with heater
  • Heater, cab

CAB/CANOPY
  • 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.

POWER TRAIN
  • Autoshift

OTHER ATTACHMENTS
  • 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

HYDRAULICS
  • 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.

BLADES, MOLDBOARDS
  • 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")
  • Blade, front
  • Cutting edge, 203 mm × 19 mm (8" × 3/4"). For use with 14' blade
  • Endbits, overlay, reversible pair for use with 203 mm (8") cutting edges