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120H Motor Grader

The 120H blends productivity and durability to give you the best return on your investment. The Cat® 3126B engine, direct-drive power shift transmission and load-sensing hydraulics are perfectly balanced, working together to deliver top productivity in all applications.

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SPECIFICATION SUMMARY
  • Engine Model Cat® 3126B DITA ATAAC VHP
  • VHP - gears 4-8 Net 140.0 hp
  • Base Power (all gears) Gross 139.0 hp
  • VHP - gears 1-3 Gross 139.0 hp

PRICE (USD)
Call 800-637-5000 for rate information

Engine

  • Engine Model
    Cat® 3126B DITA ATAAC VHP
  • VHP - gears 4-8 Net
    140.0 hp
  • Base Power (all gears) Gross
    139.0 hp
  • VHP - gears 1-3 Gross
    139.0 hp
  • VHP - gears 4-8 Gross
    154.0 hp
  • Bore
    4.3 in
  • Stroke
    5.0 in
  • Base Power (all gears) - Net
    125.0 hp
  • Maximum Torque
    544.0 lb ft
  • Torque Rise
    50%
  • Displacement
    439.0 in3
  • VHP - gears 1-3 Net
    125.0 hp
  • Number of Cylinders
    6
  • Derating Altitude
    10000.0 ft
  • Standard - Fan Speed - Maximum
    1210 RPM
  • Standard - Fan Speed - Minimum
    500 RPM
  • Standard - Ambient Capability
    117.0 ° F
  • Base Power (1st Gear) - Net
    124.72 HP
  • Speed at Rated Power
    2000 RPM
  • Standard - Fan Speed - Maximum
    1210 RPM
  • Standard - Fan Speed - Minimum
    500 RPM
  • Standard - Ambient Capability
    117 °F
  • Engine Model
    Cat® 3126B DITA ATAAC VHP
  • VHP - Gears 4-8, Net
    140 HP
  • Base Power (All Gears) - Gross
    139 HP
  • VHP - Gears 1-3, Gross
    139 HP
  • VHP - Gears 4-8, Gross
    154 HP
  • Bore
    4.3 in
  • Stroke
    5 in
  • Base Power (All Gears) - Net
    125 HP
  • Maximum Torque
    544 lb/ft
  • Torque Rise
    50%
  • Displacement
    439 in³
  • VHP - Gears 1-3, Net
    125 HP
  • Number of Cylinders
    6
  • Derating Altitude
    10000 ft
  • High Ambient - Fan Speed - Maximum
    1300 RPM
  • High Ambient - Fan Speed - Minimum
    500 RPM
  • High - Ambient Capability
    122 °F

Weights

  • Gross Vehicle Weight - Maximum - Front Axle
    11190.0 lb
  • Gross Vehicle Weight - Maximum - Rear Axle
    23116.0 lb
  • Gross Vehicle Weight - Base - Front Axle
    7959.0 lb
  • Gross Vehicle Weight - Base - Rear Axle
    19921.0 lb
  • Gross Vehicle Weight - Maximum - Total
    37306.0 lb
  • Gross Vehicle Weight - Base - Total
    27880.0 lb
  • Gross Vehicle Weight - Maximum - Front Axle
    11190 lb
  • Gross Vehicle Weight - Maximum - Rear Axle
    23116 lb
  • Gross Vehicle Weight - Base - Front Axle
    7959 lb
  • Gross Vehicle Weight - Base - Rear Axle
    19921 lb
  • Gross Vehicle Weight - Maximum - Total
    37306 lb
  • Gross Vehicle Weight - Base - Total
    27880 lb

Power Train

  • Brakes - Service, Surface Area
    2595.0 in2
  • Forward/Reverse Gears
    8 fwd / 6 rev
  • Transmission
    direct drive, power shift
  • Brakes - Service
    air actuated, multiple oil disc
  • Brakes - Parking
    air-actuated, multiple oil-disc
  • Brakes - Secondary
    dual circuit
  • Brakes - Service - Surface Area
    2595 in²

Hydraulic System

  • Pump Output
    38.0 gal/min
  • Standby Pressure
    450.0 psi
  • Circuit Type
    closed center load sense
  • Pump Type
    variable piston
  • Maximum System Pressure
    3500 psi
  • Standby Pressure
    450 psi
  • Pump Output
    38 gal/min
  • Reservoir Tank Capacity
    10.04 gal (US)

Moldboard

  • Moldboard - Height
    24.0 in
  • Moldboard - Thickness
    0.87 in
  • Blade Pull - Base GVW
    17816.0 lb
  • Blade Pull - Maximum GVW
    23504.0 lb
  • Blade Down Pressure - Base GVW
    14488.0 lb
  • Blade Down Pressure - Max GVW
    20056.0 lb
  • Blade Width
    12 ft
  • Arc Radius
    16.25 in
  • Throat Clearance
    4.7 in
  • Cutting Edge Width
    6 in
  • Cutting Edge Thickness
    0.63 in
  • End Bit - Width
    6 in
  • End Bit - Thickness
    0.63 in
  • Moldboard - Height
    24 in
  • Moldboard - Thickness
    0.87 in
  • Blade Pull - Base GVW
    17816 lb
  • Blade Pull - Maximum GVW
    23504 lb
  • Blade Down Pressure - Base GVW
    14488 lb
  • Blade Down Pressure - Maximum GVW
    20056 lb

Ripper

  • Shank Holder Spacing - Minimum
    21.0 in
  • Ripping Depth - Maximum
    10.3 in
  • Ripper Shank Holders
    5
  • Penetration Force
    9566 lb
  • Pry-Out Force
    5020 lb
  • Machine Length Increase, Beam Raised
    41.7 in
  • Shank Holder Spacing - Minimum
    21 in

Frame

  • Front-Top/Bottom Plate - Width
    11.0 in
  • Front-Top/Bottom Plate - Thickness
    0.9 in
  • Front-Side Plates - Width
    9.3 in
  • Front-Side Plates - Thickness
    0.4 in
  • Front-linear weights - min
    90.0 lb/ft
  • Front-linear weights - max
    115.0 lb/ft
  • Front-section modulus - min
    99.0 in3
  • Front-section modulus - max
    225.0 in3
  • Front Axle - Wheel Lean, Left/Right
    18°
  • Circle - Diameter
    60.2 in
  • Circle - Blade Beam Thickness
    1.2 in
  • Drawbar - Height
    5 in
  • Front Axle - Height to Center
    23.9 in
  • Front Axle - Total Oscillation per Side
    32°
  • Front-Top/Bottom Plate - Width
    11 in
  • Front-Top/Bottom Plate - Thickness
    0.9 in
  • Front-Side Plates - Width
    9.3 in
  • Front-Side Plates - Thickness
    0.4 in
  • Front-Linear Weights - Minimum
    90 lb/ft
  • Front-Linear Weights - Maximum
    115 lb/ft
  • Front-Section Modulus - Minimum
    99 in³
  • Front-Section Modulus - Maximum
    225 in³
  • Front Axle - Wheel Lean - Left/Right
    18°

Dimensions

  • Height - Top of Cab
    122.0 in
  • Height - no cab
    121.0 in
  • Length - counterweight to ripper
    396.2 in
  • Width - Outside Front Tires
    96.1 in
  • Length - Front Axle to Mid Tandem
    233.0 in
  • Length - Front Tire to Rear of Machine
    327.3 in
  • Length - Front Axle to Moldboard
    102.2 in
  • Length - Between Tandem Axles
    59.4 in
  • Width - Outside Rear Tires
    94.6 in
  • Width - Tire Center Lines
    80.9 in
  • Height - Front Axle Center
    23.4 in
  • Height to Exhaust Stack
    123.0 in
  • Height to Top of Cylinders
    115.0 in
  • Ground Clearance at Rear Axle
    13.8 in
  • Height - High Profile Cab
    131 in
  • Height - Top of Cab
    122 in
  • Height - No Cab
    121 in
  • Length - Counterweight to Ripper
    396.2 in
  • Width - Outside Front Tires
    96.1 in
  • Length - Front Axle to Mid Tandem
    233 in
  • Length - Front Tire to Rear of Machine
    327.3 in
  • Length - Front Axle to Moldboard
    102.2 in
  • Length - Between Tandem Axles
    59.4 in
  • Width - Outside Rear Tires
    94.6 in
  • Width - Tire Center Lines
    80.9 in
  • Height - Front Axle Center
    23.4 in
  • Height - Exhaust Stack
    123 in
  • Height - Top of Cylinders
    115 in
  • Ground Clearance - Rear Axle
    13.8 in

Service Refill

  • Transmission/Differential/Final Drives
    12.2 gal
  • Fuel Capacity
    90 gal (US)
  • Cooling System
    10.4 gal (US)
  • Hydraulic System - Total
    17.7 gal (US)
  • Hydraulic System - Tank
    9.9 gal (US)
  • Engine Oil
    7.8 gal (US)
  • Tandem Housing - Each
    12.7 gal (US)
  • Front Wheel Spindle Bearing Housing
    0.13 gal (US)
  • Circle Drive Housing
    1.8 gal (US)
  • Transmission - Differential - Final Drives
    12.2 gal (US)

Operating Specifications

  • Top Speed - Forward
    26.5 mile/h
  • Top Speed - Reverse
    20.9 mile/h
  • Turning Radius - Outside Front Tires
    23.6 ft
  • Steering Range - Left/Right
    50°
  • Articulation Angle - Left/Right
    20°
  • Forward - 1st
    2.3 mile/h
  • Forward - 2nd
    3.1 mile/h
  • Forward - 3rd
    4.5 mile/h
  • Forward - 4th
    6.2 mile/h
  • Forward - 5th
    9.7 mile/h
  • Forward - 6th
    13.2 mile/h
  • Forward - 7th
    18.2 mile/h
  • Forward - 8th
    26.5 mile/h
  • Reverse - 1st
    1.8 mile/h
  • Reverse - 2nd
    3.4 mile/h
  • Reverse - 3rd
    4.9 mile/h
  • Reverse - 4th
    7.7 mile/h
  • Reverse - 5th
    14.4 mile/h
  • Reverse - 6th
    20.9 mile/h

Blade Range

  • Circle Centershift - Right
    24.7 in
  • Circle Centershift - Left
    24.6 in
  • Moldboard Sideshift - Right
    26 in
  • Moldboard Sideshift - Left
    20.6 in
  • Maximum Blade Position Angle
    90°
  • Blade Tip Range - Forward
    40°
  • Blade Tip Range - Backward
  • Maximum Shoulder Reach Outside of Tires - Right
    75.3 in
  • Maximum Shoulder Reach Outside of Tires - Left
    72.4 in
  • Maximum Lift Above Ground
    18 in
  • Maximum Depth of Cut
    30.5 in

Scarifier

  • Front, V-Type - Scarifier Shank Holder Spacing
    4.6 in
  • Front, V-Type - Scarifier Shank Holders
    11
  • Front, V-Type - Scarifying Depth, Maximum
    11.5 in
  • Front, V-Type - Working Width
    46.6 in
  • Front, Straight - Working Width
    71 in
  • Front, Straight - Scarfying Depth, Maximum
    12.5 in
  • Front, Straight - Scarifier Shank Holders
    17
  • Front, Straight - Scarifier Shank Holder Spacing
    4.38 in

Tandems

  • Height
    17.2 in
  • Width
    6.8 in
  • Sidewall Thickness - Inner
    0.55 in
  • Sidewall Thickness - Outer
    0.63 in
  • Drive Chain Pitch
    1.75 in
  • Wheel Axle Spacing
    59.5 in
  • Tandem Oscillation - Front Up
    15°
  • Tandem Oscillation - Front Down
    25°

Engine

Power Train

Hydraulics

Drawbar, Circle, Moldboard

Structures

Operator's Station

Serviceability

Environmentally Responsible Design

Customer Support

Standard Equipment:

  • Electrical
    • Alarm, back-up
    • Alternator, 35 ampere, sealed
    • Batteries, maintenance free, 750 CCA
    • Electrical system, 24 volt
    • Lights, stop and tail
    • Motor, starting
    • Product Link connection
  • Operator Environment
    • Accelerator
    • Ashtray and lighter
    • Coat hook
    • Control console, adjustable
    • Cup holder
    • EMS III operator warning system
    • Panel gauges inside the cab
    • Hydraulic controls, load sensing
    • Meter, hour, digital
    • Mirror, inside rearview, wide angle
    • Mounting bracket, general purpose
    • Power steering, hydraulic
    • ROPS cab, sound suppressed, low profile
    • Seat, cloth, covered adjustable
    • Seat belt, retractable 76 mm (3 in)
    • Steering wheel, tilt, adjustable
    • Storage area for cooler/lunchbox
    • Sunscreen, front windshield
    • Throttle control, electronic
    • Washer / wipers, (3) front windshields
    • Windows, fixed lower front
  • Powertrain
    • Air cleaner with dry type radial seal, service indicator, sutomatic dust ejector
    • Air to air after cooler (ATAAC)
    • Brakes - oil disc, four-wheel air actuated
    • Demand fan
    • Differential, lock-unlock
    • Engine, 3126 DITA diesel with VHP, automatic derate, automatic idle control
    • Fuel tank, sediment drain
    • Fuel-water separator
    • Lube for life pump drive shaft
    • Muffler, under hood
    • Parking brake - multi-disc, sealed and oil cooled
    • Pre-screener
    • Priming pump, fuel
    • Serpentine belt, automatic tensioner
    • Tandem drive
    • Transmission
  • Other Standard Equipment
    • Antifreeze -35°C (-30°F)
    • Bumper, rear, integrated, with hitch
    • Clutch, circle drive slip
    • Cutting edges
    • Doors, engine compartment, locking
    • Drawbar - 4 shoe, replaceable wear strips
    • Endbits - 16mm (5/8 in) DH-2 steel, 16mm (5/8 in) mounting bolts
    • Frame, articulated with safety lock
    • Fuel tank, 90 gallon (340 L)
    • Fueling, ground level
    • Ground level engine shutdown
    • Horn, air
    • Link bar, 7 position
    • Moldboard
    • Radiator cleanout access
    • SOS ports: engine, hydraulic, transmission, coolant, fuel
    • Tool box
  • Tires, Rims, & Wheels
    • Partial allowance: 13.00-24 10PR on 9" single piece rims

Optional Equipment:

  • Cutting Edges For 22 Mm (7/8 In) Thick Blade
    • 203 mm x 19 mm (8 in x 3/4 in) for 3.7 m blade
    • 203 mm x 19 mm (8 in x 3/4 in) for 4.1 m blade
    • 203 mm x 16 mm (8 in x 5/8 in) for 3.7 m blade
    • 203 mm x 16 mm (8 in x 5/8 in) for 4.1m blade
  • Cutting Edges For 25 Mm (1 In) Thick Blade
    • 203 mm x 19 mm (8 in x 3/4 in) for 3.7 m blade
    • 203 mm x 19 mm (8 in x 3/4 in) for 4.1 m blade
  • Extensions, Blade 610 Mm (2 Ft) Right And Left
    • for 22 mm (7/8 in) thick blade - 114 kg (250 lb)
    • for 25 mm (1 in) thick blade - 148 kg (325 lb)
  • Lighting Systems:
    • bar mounted, directional and headlights - 13 kg (28 lb)
    • cab mounted, directional and headlights - 9 kg (20 lb)
    • cab and bar mounted, directional, headlights and work lights - 22 kg (48 lb)
    • cab and bar mounted, high, directional, headlights and work lights - 22 kg (48 lb)
    • work lights, front and rear - 6 kg (13 lb)
    • snow wing light, right - 18 kg (40 lb)
    • warning light, cab or canopy mounted - 3 kg (6 lb)