New | 120M2 Motor Grader

The M Series 2 continues the legacy of quality already established by Cat Motor Graders. The extensive validation program, combined with improvements to the manufacturing process, allows Caterpillar to further enhance our quality. The end result of this development process is a motor grader line with breakthrough technologies, tested in the field and built around real applications and real customer needs. M Series 2 Motor Graders meet Tier 4 Interim/Stage IIIB equivalent emission standards.

Engine
Base Power (1st Gear) - Net145 HP
Engine ModelCat® C7.1 ACERT™
Bore4.13 in
Stroke5.31 in
Speed at Rated Power2,100 rpm
Base Power (1st Gear) - Net - Metric147 HP
Base Power (All Gears) - Net145 HP
EmissionsTier 4 Interim/Stage IIIB equivalent
High Ambient - Fan Speed - Standard1,000 rpm
Maximum Torque693 lb/ft
Standard Capability109 °F
Torque Rise45%
VHP Plus - Gear 1F, Net145 HP
VHP Plus - Gear 2F, Net153 HP
VHP Plus - Gear 3F, Net161 HP
VHP Plus - Gear 4F, Net169 HP
VHP Plus - Gear 5F, Net174 HP
VHP Plus - Gear 6F, Net179 HP
VHP Plus - Gear 7F, Net184 HP
VHP Plus - Gear 8F, Net189 HP
VHP Plus Range - Net108-141 kW (145-189 hp)
VHP Plus Range - Net - Metric108-141 kW (147-192 hp)
Displacement428 in³
Number of Cylinders6
Derating Altitude10000 ft
High Ambient - Fan Speed - Maximum1,350 rpm
High Ambient - Fan Speed - Minimum500 rpm
High - Ambient Capability122 °F
Power Train
Forward/Reverse Gears8 Forward/6 Reverse
TransmissionDirect Drive, Powershift
Brakes - ServiceMultiple Oil Disc
Brakes - Service - Surface Area3565 in²
Brakes - ParkingMultiple Oil Disc
Brakes - SecondaryDual Circuit
Hydraulic System
Circuit TypeParallel
Pump TypeVariable Piston
Pump Output55.7 gal/min
Maximum System Pressure3500 psi
Reservoir Tank Capacity15.85 gal (US)
Standby Pressure609 psi
Operating Specifications
Top Speed - Forward28.4 mile/h
Top Speed - Reverse22.4 mile/h
Turning Radius - Outside Front Tires24.3 ft
Steering Range - Left/Right47.5°
Articulation Angle - Left/Right20°
Forward - 1st2.5 mile/h
Forward - 2nd3.4 mile/h
Forward - 3rd4.9 mile/h
Forward - 4th6.7 mile/h
Forward - 5th10.4 mile/h
Forward - 6th14.2 mile/h
Forward - 7th19.5 mile/h
Forward - 8th28.4 mile/h
Reverse - 1st1.9 mile/h
Reverse - 2nd3.9 mile/h
Reverse - 3rd5.3 mile/h
Reverse - 4th8.2 mile/h
Reverse - 5th15.4 mile/h
Reverse - 6th22.4 mile/h
Service Refill
Fuel Capacity100 gal (US)
Cooling System12.9 gal (US)
Hydraulic System - Tank16.9 gal (US)
Engine Oil7.9 gal (US)
Transmission - Differential - Final Drives16.5 gal (US)
Tandem Housing - Each15.6 gal (US)
Front Wheel Spindle Bearing Housing0.13 gal (US)
Circle Drive Housing1.8 gal (US)
Frame
Drawbar - Width3 in
Circle - Diameter60.2 in
Circle - Blade Beam Thickness1.4 in
Drawbar - Height6 in
Front Frame Structure - Height11 in
Front Frame Structure - Width8 in
Drawbar - Thickness0.4 in
Front-Top/Bottom Plate - Width10 in
Front-Top/Bottom Plate - Thickness0.87 in
Front Axle - Height to Center22.5 in
Front Axle - Wheel Lean - Left/Right18°
Front Axle - Total Oscillation per Side32°
Tandems
Height19.8 in
Width6.8 in
Sidewall Thickness - Inner0.5 in
Sidewall Thickness - Outer0.6 in
Drive Chain Pitch1.8 in
Wheel Axle Spacing59.5 in
Tandem Oscillation - Front Up15°
Tandem Oscillation - Front Down25°
Moldboard
Blade Width12 ft
Moldboard - Height24 in
Moldboard - Thickness0.87 in
Arc Radius16.3 in
Throat Clearance4.9 in
Cutting Edge Width6 in
Cutting Edge Thickness0.6 in
End Bit - Width6 in
End Bit - Thickness0.6 in
Blade Pull - Base GVW23737 lb
Blade Pull - Maximum GVW29980 lb
Blade Down Pressure - Base GVW15030 lb
Blade Down Pressure - Maximum GVW27235 lb
Blade Range
Circle Centershift - Right25.8 in
Circle Centershift - Left25.8 in
Moldboard Sideshift - Right26 in
Moldboard Sideshift - Left20.1 in
Maximum Blade Position Angle90°
Blade Tip Range - Forward40°
Blade Tip Range - Backward
Maximum Lift Above Ground16.8 in
Maximum Depth of Cut28.3 in
Maximum Shoulder Reach Outside of Tires - Left68.6 in
Maximum Shoulder Reach Outside of Tires - Right75 in
Ripper
Ripper Shank Holder Spacing21 in
Ripping Depth - Maximum8.9 in
Ripper Shank Holders5
Penetration Force17692 lb
Pry-Out Force5660 lb
Machine Length Increase, Beam Raised41.5 in
Scarifier
Front, V-Type - Working Width47.4 in
Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holder Spacing4.6 in
Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holders5/11
Front, V-Type, 5 or 11 Tooth - Scarifying Depth, Maximum18.4 in
Front, V-Type, 5 or 11 Tooth - Working Width40.6 in
Mid, Straight - Ripping Depth, Maximum12.5 in
Mid, Straight - Scarifier Shank Holder Spacing4.4 in
Mid, Straight - Scarifier Shank Holders17
Mid, Straight - Scarifying Depth, Maximum16.8 in
Mid, Straight - Working Width71 in
Mid, V-Type - Scarifier Shank Holder Spacing4.6 in
Mid, V-Type - Scarifier Shank Holders11
Mid, V-Type - Scarifying Depth, Maximum11.5 in
Mid, V-Type - Working Width46.6 in
Weights
Operating Weight - Typically Equipped39892 lb
Gross Vehicle Weight - Maximum - Rear Axle33312 lb
Gross Vehicle Weight - Base - Front Axle8651 lb
Gross Vehicle Weight - Base - Rear Axle26374 lb
Gross Vehicle Weight - Maximum - Total48987 lb
Gross Vehicle Weight - Base - Total35025 lb
Gross Vehicle Weight - Maximum - Front Axle15675 lb
Operating Weight - Typically Equipped - Front Axle10563 lb
Operating Weight - Typically Equipped - Rear Axle29329 lb
Operating Weight - Typically Equipped - Total39892 lb
Standards
BrakesISO 3450
ROPS/FOPSISO 3471/ISO 3449
SoundISO 6394; ISO 6395
SteeringISO 5010
Air Conditioning System
Air ConditioningThe 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 CO2 equivalent of 2.88 metric tonnes.
Emissions
NoteU.S. EPA Tier 4 Interim/EU Stage IIIB equivalent
Tires
17.5 R25 Tire (14x25 Rim) Dimension Adjustments - Height to Dimensions 1, 2, 8, 9, 10-0.8 in
17.5 R25 Tire (14x25 Rim) Dimension Adjustments - Length Front Tire to Rear of Machine Dimension 6-0.6 in
17.5 R25 Tire (14x25 Rim) Dimension Adjustments - Width to Tire Centerline Dimension 114.1 in
17.5 R25 Tire (14x25 Rim) Dimension Adjustments - Width to Tire Front/Rear Tires Dimensions 12, 137.6 in
NoteDimension changes may vary by brand/type and inflation of tires.
  • Customer Support
  • “smart” Machine Systems
  • Work Tools And Attachments
  • Sustainability
  • Structures And Dcm
  • Steering And Implement Controls
  • Safety
  • Power Train
  • Operator Station
  • Integrated Technologies
  • Hydraulics
  • Engine
  • Emissions Technology

Standard Equipment

POWER TRAIN
  • Air cleaner, dual stage, dry type, diesel, with automatic engine derate and automatic dust ejector, service indicator through Cat Messenger
  • Air-to-air after cooler (ATAAC)
  • Belt, serpentine, automatic tensioner
  • Brakes, oil disc, four-wheel, hydraulic
  • Demand fan, hydraulic, swing-out
  • Differential lock/unlock, automatic
  • Drain, engine oil, ecology
  • Electronic over speed protection
  • Engine, C7.1 with ACERT Technology, Tier 4 Interim and Stage IIIB equivalent emission standards
  • Fuel tank, 378 L (100 gal), ground level access and sediment drain
  • Parking brake – multi-disc, sealed, oil-cooled
  • Priming pump, fuel
  • Rear axle, modular
  • Sediment drain, fuel tank
  • Tandem drive
  • Transmission, 8F/6R, power shift, direct drive
  • VHP Plus (Variable Horsepower)
ELECTRICAL
  • Alarm, back up
  • Alternator, 150 ampere, sealed
  • Batteries, maintenance free, heavy duty, 1,125 CCA
  • Breaker panel, ground accessible
  • Cab harness and electrical hydraulic valves
  • Electrical system, 24V
  • Grade Control Ready – Cab harness, software, electrical hydraulic valves, bosses and brackets
  • Lights, roof-mounted roading, reversing, LED stop and tail
  • Product Link Ready
  • Starter, electric
OPERATOR ENVIRONMENT
  • Accelerator
  • Air conditioning with heater
  • Arm and wrist rest, electronically adjustable
  • Articulation, automatic Return-to-Center
  • Ashtray and lighter
  • Cat® Messenger operator information system
  • Centershift pin indicator
  • Coat hook
  • Cup holder
  • Display, digital speed and gear
  • Doors, left and right side with wiper
  • Gauge, machine level
  • Gauge cluster (analog) – fuel, articulation, engine coolant temp, engine RPM, hydraulic oil temp, regen
  • Hour meter, digital
  • Joystick hydraulic controls right/left blade lift with float position, circle drive, blade sideshift and tip, centershift, front wheel lean, articulation and power steering
  • Joystick, adjustable armrests
  • Joystick gear selection
  • Joystick hydraulic power steering
  • Ladders, cab, left and right side
  • Lights, night time cab
  • Mirror, inside rearview, wide angle
  • Power port, 12V
  • Radio Ready, Entertainment
  • ROPS cab, sound suppressed 70 dB(A)
  • Seat, cloth-covered, comfort suspension
  • Seat belt, retractable 76 mm (3 in)
  • Storage area for cooler/lunchbox
  • Throttle control, electronic
  • Windows, laminated glass: – fixed front with intermittent wiper – side and rear (3)
FLUIDS
  • Antifreeze
  • Extended Life Coolant to –35° C (–30° F)
TIRES, RIMS AND WHEELS
  • Partial allowance for tires on 254 × 607 mm (10 × 24 in) multi-piece rims is included in the base machine price and weight
OTHER STANDARD EQUIPMENT
  • Accumulators, brake, dual certified
  • Anti-glare paint
  • Bumper, rear, integrated with hitch
  • CD ROM Parts Book
  • Clutch, circle drive slip
  • Cutting edges: – 152 × 16 mm (6 × 5/8 in) – curved DH-2 steel – 19 mm (3/4 in) mounting bolts
  • Doors (3), engine compartment, locking
  • Drawbar – 6 shoes, replaceable wear strips
  • Electrical hydraulic valves, hydraulic lines for base 8 functions
  • Endbits: – 16 mm (5/8 in) DH-2 steel – 19 mm (3/4 in) mounting bolts
  • Fluid check, ground level
  • Frame, articulated, with safety lock
  • Ground level engine shutdown
  • Hammer (emergency exit)
  • Horn, electric
  • Hydraulic lines for base functions
  • Lockout, hydraulic implement (for roading and servicing)
  • Moldboard – 3658 × 610 × 22 mm (12 ft × 24 in × 7/8 in)
  • Mounting, cab roof accessories
  • Pump, hydraulic, high capacity, 98 cm³ (6 in³)
  • Radiator, cleanout access (both sides with swing doors)
  • Secondary steering
  • Serviceability, LH side
  • SOSSM ports: engine, hydraulic, transmission, coolant, fuel
  • Tandem walkway/guards
  • Tool box
  • Tow hitch

Optional Equipment

ELECTRICAL
  • Alternator, 280 ampere
  • Batteries: extreme duty, 1,400 CCA
  • Converter, communication (CB)
  • Lights: Headlights, high
  • Lights: Headlights, low
  • Lights: Working lights, basic
  • Lights: Working lights, plus
  • Lights: Warning: beacon or strobe
  • Lights: Mounting for warning light
GUARDS
  • Fenders, front
  • Fenders, rear
  • Sound suppression (bottom)
  • Sound suppression (enclosure)
  • Transmission
OPERATOR ENVIRONMENT
  • Fan, defroster, rear window
  • Mirrors, outside: heated 24V
  • Mirrors, outside: mounted
  • Precleaner, HVAC
  • Radio ready, AM/FM
  • Seat, air suspension, cloth
  • Shade, sun
  • Wiper/washer, rear
POWER TRAIN
  • Fuel tank, fast fill
  • Oil, hydraulic, biodegradable synthetic
  • Precleaner, snow
  • Starter, heavy duty, 1,000 Amp
  • Transmission, autoshift
OTHER ATTACHMENTS
  • AccuGrade ARO
  • Accumulators, blade lift
  • Camera, rearview
  • Cat Product Link 321SR
  • Drain, ecology, engine Wiggins
  • Fenders, rear
  • Heater, engine coolant: 120V
  • Heater, engine coolant: 240V
  • Hydraulic arrangements with one or more additional hydraulic valves are available for rear ripper, dozer, snow plow and snow wing.
  • Snow wing mounting, frame ready
  • Sound suppression
  • Starting aid, ether
WORK TOOLS/G.E.T.
  • Blade extension, left hand, 610 mm (2 ft)
  • Cutting edges, curved
  • Endbits, overlay
  • Front lift group, mounting
  • Front lift group, mechanical
  • Grader bit, narrow and super penetration
  • Mid-Mount Scarifier, Package
  • Mid-Mount Scarifier, Mounting
  • Moldboard: 4267 mm × 610 mm × 22 mm (14 ft × 24 in × 7/8 in)
  • Moldboard: 4267 mm × 686 mm × 25 mm (14 ft × 27 in × 1 in)
  • Push plate, counterweight
  • Ripper, mounting
  • Ripper, rear
  • Ripper tooth
  • Scarifier, front
  • Snow Arrangement
  • Snow Wing Ready Package
MACHINE ARRANGEMENTS
  • Canadian Arrangement
  • European Arrangement
  • European Roading Arrangement

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