M Series Motor Graders:

12M3/12M3 AWD Motor Grader

Engine Model
Cat® C9.3 ACERT™
Gross Vehicle Weight - Maximum - Front Axle
17075.0 lb
Gross Vehicle Weight - Maximum - Rear Axle
38069.0 lb
Operating Weight, Typically Equipped - Front Axle
12055.0 lb

Reduce your carbon footprint with the latest in emissions reduction technology with the durable M Series 3 motor grader. The 12M3 motor grader unites comfortability and productivity to get optimal performance on the jobsite. Get the best visibility with angled cab doors, tapered engine enclosure, and sloped rear window.



Product Specs

  • Engine

  • Engine Model
    Cat® C9.3 ACERT™
    Bore
    4.5in
    Stroke
    5.9in
    Emissions
    U.S. EPA Tier 4 Final/EU Stage IV
    High Ambient - Fan Speed - Standard
    1,400 rpm
    Maximum Torque (VHP Plus)
    840.0lb ft
    Standard Capability
    109.0° F
    Torque Rise
    38%
    VHP Plus Range - Net
    133-172 kW (179-231 hp)
    VHP Plus Range - Net (Metric)
    133-172 kW (181-234 hp)
    VHP Plus: Gear - Net Power - Forward - 1st
    179.0hp
    VHP Plus: Gear - Net Power - Forward - 2nd
    189.0hp
    VHP Plus: Gear - Net Power - Forward - 3rd
    200.0hp
    VHP Plus: Gear - Net Power - Forward - 4th
    210.0hp
    VHP Plus: Gear - Net Power - Forward - 5th
    215.0hp
    VHP Plus: Gear - Net Power - Forward - 6th
    220.0hp
    VHP Plus: Gear - Net Power - Forward - 7th
    225.0hp
    Displacement
    567.5in3
    Number of Cylinders
    6
    Derating Altitude
    10000.0ft
    High Ambient - Fan Speed - Maximum
    1,550 rpm
    High Ambient - Fan Speed - Minimum
    500 rpm
    High Ambient Capability
    122.0° F
    Engine Model
    Cat® C9.3 ACERT™
    Bore
    4.5in
    Stroke
    5.9in
    Emissions
    U.S. EPA Tier 4 Final/EU Stage IV
    High Ambient - Fan Speed - Standard
    1,400 rpm
    Maximum Torque - VHP Plus
    840lb/ft
    Standard Capability
    109°F
    Torque Rise
    38%
    VHP Plus - Gear - Net Power - Forward 1st
    179HP
    VHP Plus - Gear - Net Power - Forward 2nd
    189HP
    VHP Plus - Gear - Net Power - Forward 3rd
    200HP
    VHP Plus - Gear - Net Power - Forward 4th
    210HP
    VHP Plus - Gear - Net Power - Forward 5th
    215HP
    VHP Plus - Gear - Net Power - Forward 6th
    220HP
    VHP Plus - Gear - Net Power - Forward 7th
    225HP
    VHP Plus Range - Net
    133-172 kW (179-231 hp)
    VHP Plus Range - Net - Metric
    133-172 kW (181-234 hp)
    Displacement
    567.5in³
    Number of Cylinders
    6
    Derating Altitude
    10000ft
    High Ambient - Fan Speed - Maximum
    1,550 rpm
    High Ambient - Fan Speed - Minimum
    500 rpm
    High - Ambient Capability
    122°F
    Base Power (1st Gear) - Net
    179HP
    Speed at Rated Power
    2,000 rpm
    Base Power (1st Gear) - Net - Metric
    181HP
    VHP Plus - Gear - Net Power - Forward 8th
    231HP
    VHP Plus - Gear - Net Power - Reverse 1st
    179HP
    VHP Plus - Gear - Net Power - Reverse 2nd
    189HP
    VHP Plus - Gear - Net Power - Reverse 3rd-6th
    200HP
  • Weights

  • Gross Vehicle Weight - Maximum - Front Axle
    17075.0lb
    Gross Vehicle Weight - Maximum - Rear Axle
    38069.0lb
    Operating Weight, Typically Equipped - Front Axle
    12055.0lb
    Operating Weight, Typically Equipped - Rear Axle
    30592.0lb
    Gross Vehicle Weight - Base - Front Axle
    9343.0lb
    Gross Vehicle Weight - Base - Rear Axle
    28077.0lb
    Gross Vehicle Weight - Maximum - Total
    55144.0lb
    Gross Vehicle Weight - Base - Total
    37420.0lb
    Operating Weight, Typically Equipped - Total
    42647.0lb
    Gross Vehicle Weight - Maximum - Front Axle
    17075lb
    Gross Vehicle Weight - Maximum - Rear Axle
    38069lb
    Operating Weight - Typically Equipped - Front Axle
    12055lb
    Operating Weight - Typically Equipped - Rear Axle
    30592lb
    Gross Vehicle Weight - Base - Front Axle
    9343lb
    Gross Vehicle Weight - Base - Rear Axle
    28077lb
    Gross Vehicle Weight - Maximum - Total
    55144lb
    Gross Vehicle Weight - Base - Total
    37420lb
    Operating Weight - Typically Equipped - Total
    42647lb
    Operating Weight - Typically Equipped
    42647lb
  • Power Train

  • Brakes - Service, Surface Area
    3565.0in2
    Forward/Reverse Gears
    8 Forward/6 Reverse
    Transmission
    APECS, Direct Drive, Powershift
    Brakes - Service
    Multiple Oil Disc
    Brakes - Parking
    Multiple Oil Disc
    Brakes - Secondary
    Dual Circuit
    Brakes - Service - Surface Area
    3565in²
  • Hydraulic System

  • Pump Output
    55.7gal/min
    Standby Pressure
    885.0psi
    Circuit Type
    Parallel
    Pump Type
    Variable Piston
    Maximum System Pressure
    3500psi
    Standby Pressure
    885psi
    Pump Output
    55.7gal/min
    Reservoir Tank Capacity
    16.9gal (US)
  • Moldboard

  • Moldboard - Height
    24.0in
    Moldboard - Thickness
    0.87in
    Blade Pull - Base GVW
    25269.0lb
    Blade Pull - Maximum GVW
    34262.0lb
    Blade Down Pressure - Base GVW
    16038.0lb
    Blade Down Pressure - Maximum GVW
    29309.0lb
    Moldboard - Blade Width
    12.0ft
    Moldboard - Height
    24in
    Moldboard - Thickness
    0.87in
    Blade Pull - Base GVW
    25269lb
    Blade Pull - Maximum GVW
    34262lb
    Blade Down Pressure - Base GVW
    16038lb
    Blade Down Pressure - Maximum GVW
    29309lb
    Moldboard - Blade Width
    12ft
    Blade Width
    12ft
    Arc Radius
    16.3in
    Throat Clearance
    6.5in
    Cutting Edge Width
    6in
    Cutting Edge Thickness
    0.6in
    End Bit - Width
    6in
    End Bit - Thickness
    0.6in
  • Service Refill

  • Diesel Exhaust Fluid
    5.8gal
    Fuel Capacity
    104gal (US)
    Cooling System
    15gal (US)
    Hydraulic System - Total
    26.4gal (US)
    Hydraulic System - Tank
    16.9gal (US)
    Transmission - Differential - Final Drives
    18.5gal (US)
    Engine Oil
    7.9gal (US)
    Tandem Housing - Each
    20gal (US)
    Front Wheel Spindle Bearing Housing
    0.13gal (US)
    Circle Drive Housing
    1.8gal (US)
    Diesel Exhaust Fluid
    5.8gal (US)
  • Frame

  • Circle - Height
    5.4in
    Drawbar - Thickness
    0.5in
    Front-Top/Bottom Plate - Width
    12.0in
    Front-Top/Bottom Plate - Thickness
    0.87in
    Front Axle - Wheel Lean, Left/Right
    18°
    Drawbar - Width
    3in
    Circle - Diameter
    60.2in
    Circle - Blade Beam Thickness
    1.6in
    Drawbar - Height
    6in
    Front Frame Structure - Height
    12.6in
    Front Frame Structure - Width
    12in
    Front Axle - Height to Center
    23.5in
    Front Axle - Total Oscillation per Side
    32°
    Circle - Height
    5.4in
    Drawbar - Thickness
    0.5in
    Front-Top/Bottom Plate - Width
    12in
    Front-Top/Bottom Plate - Thickness
    0.87in
    Front Axle - Wheel Lean - Left/Right
    18°
  • Scarifier

  • Mid, V-Type - Scarifier Shank Holder Spacing
    4.6in
    Mid, V-Type - Scarifying Depth, Maximum
    11.5in
    Mid, V-Type - Working Width
    46.6in
    Rear - Scarifying Depth, Maximum
    16.8in
    Rear - Working Width
    84.0in
    Rear - Scarifier Shank Holder Spacing
    10.5in
    Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holder Spacing
    4.6in
    Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holders
    5/11
    Front, V-Type, 5 or 11 Tooth - Scarifying Depth, Maximum
    18.4in
    Front, V-Type, 5 or 11 Tooth - Working Width
    40.6in
    Front, V-Type - Working Width
    47.4in
    Mid, V-Type - Scarifier Shank Holders
    11
    Rear - Scarifier Shank Holders
    9
    Mid, V-Type - Scarifier Shank Holder Spacing
    4.6in
    Mid, V-Type - Scarifying Depth, Maximum
    11.5in
    Mid, V-Type - Working Width
    46.6in
    Rear - Scarifying Depth, Maximum
    16.8in
    Rear - Working Width
    84in
    Rear - Scarifier Shank Holder Spacing
    10.5in
  • Ripper

  • Ripper Shank Holder Spacing
    21.0in
    Ripping Depth - Maximum
    16.8in
    Ripper Shank Holders
    5
    Penetration Force
    20812lb
    Pry-Out Force
    27794lb
    Machine Length Increase, Beam Raised
    40.6in
    Ripper Shank Holder Spacing
    21in
  • Dimensions

  • Height - Top of Cab
    130.0in
    Length - Counterweight to Ripper
    399.0in
    Width - Outside Front Tires
    98.9in
    Length - Front Axle to Mid Tandem
    241.0in
    Length - Front Tire to Rear of Machine
    351.0in
    Length - Front Axle to Moldboard
    100.0in
    Length - Between Tandem Axles
    60.0in
    Width - Outside Rear Tires
    98.9in
    Width - Tire Center Lines
    84.3in
    Height - Front Axle Center
    23.5in
    Height to Exhaust Stack
    128.0in
    Height to Top of Cylinders
    120.0in
    Ground Clearance at Rear Axle
    13.3in
    Height - Top of Cab
    130in
    Length - Counterweight to Ripper
    399in
    Width - Outside Front Tires
    98.9in
    Length - Front Axle to Mid Tandem
    241in
    Length - Front Tire to Rear of Machine
    351in
    Length - Front Axle to Moldboard
    100in
    Length - Between Tandem Axles
    60in
    Width - Outside Rear Tires
    98.9in
    Width - Tire Center Lines
    84.3in
    Height - Front Axle Center
    23.5in
    Height - Exhaust Stack
    128in
    Height - Top of Cylinders
    120in
    Ground Clearance - Rear Axle
    13.3in
  • Operating Specifications

  • Top Speed - Forward
    29mile/h
    Top Speed - Reverse
    23mile/h
    Turning Radius - Outside Front Tires
    25.59ft
    Steering Range - Left/Right
    50°
    Articulation Angle - Left/Right
    20°
    Forward - 1st
    2.5mile/h
    Forward - 2nd
    3.4mile/h
    Forward - 3rd
    5mile/h
    Forward - 4th
    6.9mile/h
    Forward - 5th
    10.6mile/h
    Forward - 6th
    14.5mile/h
    Forward - 7th
    19.9mile/h
    Forward - 8th
    29mile/h
    Reverse - 1st
    2mile/h
    Reverse - 2nd
    3.7mile/h
    Reverse - 3rd
    5.4mile/h
    Reverse - 4th
    8.4mile/h
    Reverse - 5th
    15.7mile/h
    Reverse - 6th
    23mile/h
  • Blade Range

  • Circle Centershift - Right
    28.7in
    Circle Centershift - Left
    27.4in
    Moldboard Sideshift - Right
    26in
    Moldboard Sideshift - Left
    20.1in
    Maximum Blade Position Angle
    90°
    Blade Tip Range - Forward
    40°
    Blade Tip Range - Backward
    Maximum Shoulder Reach Outside of Tires - Right
    77.9in
    Maximum Shoulder Reach Outside of Tires - Left
    70.5in
    Maximum Lift Above Ground
    18.9in
    Maximum Depth of Cut
    28.1in
  • Standards

  • Brakes
    ISO 3450
    ROPS/FOPS
    ISO 3471/ISO 3499
    Sound
    ISO 6394; ISO 6395
    Steering
    ISO 5010
  • Tandems

  • Height
    19.9in
    Width
    7.9in
    Sidewall Thickness - Inner
    0.63in
    Sidewall Thickness - Outer
    0.71in
    Drive Chain Pitch
    2in
    Wheel Axle Spacing
    60in
    Tandem Oscillation - Front Up
    15°
    Tandem Oscillation - Front Down
    25°

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
    • Diesel exhaust fluid tank, 22.0 L (5.8 gal) ground level access, and sediment drain
    • Differential Lock/Unlock, Automatic
    • Drain, engine oil, ecology
    • Economy mode
    • Electronic over speed protection
    • Engine, C9.3 with ACERT Technology, U.S. EPA Tier 4 Final/EU Stage IV emission standards
    • Fuel tank, 394 L (104 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, powershift, direct drive, Advanced Productivity Electronic Control Strategy (APECS)
  • Electrical
    • Alarm, back up
    • Alternator, 150 ampere, sealed
    • Batteries, maintenance free, heavy duty, 1125 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
    • Starter, electric
  • Operator Environment
    • Accelerator
    • Air conditioning with heater
    • Arm and wrist rest, electronically adjustable
    • Articulation, automatic Return-to-Center
    • 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, DEF
    • 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 - door with intermittent wipers (3)
    • Windows: tempered: - left and right side wipers - rear and intermittent wiper
  • 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
    • 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
    • S·O·S℠ ports: engine, hydraulic, transmission, coolant, fuel
    • Tandem walkway/guards
    • Tool box
  • Electrical
    • Alternator, 280 ampere
    • Batteries: extreme duty, 1,400 CCA
    • Lights: Headlights, high
    • Lights: Headlights, low
    • Lights: Working lights, basic
    • Lights: Working lights, plus, LED
    • Lights: Warning: beacon or strobe
    • Lights: Mounting for warning light
  • Guards
    • Articulation guard
    • Fenders, front
    • Fenders, rear
    • Front axle guard
    • Sound suppression (bottom)
    • Sound suppression (enclosure)
    • Transmission
  • Operator Environment
    • Mirrors, outside: heated 24V
    • Mirrors, outside: mounted
    • Comfort Plus Arrangement
    • Comfort Premium Arrangement
  • Power Train
    • All Wheel Drive
    • Precleaner, snow
    • Starter, extreme duty, 1,000 Amps
    • Transmission, autoshift
  • Other Attachments
    • AccuGrade ARO
    • Integrated cross slope
    • Accumulators, blade lift
    • Camera, rearview
    • Cat Product Link 321SR
    • Cat Product Link 522
    • Drain, ecology, engine Wiggins
    • 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
    • Starting aid, ether
    • Reversing fan, automatic or manual
  • Work Tools/g.e.t.
    • Blade extension, left hand, 610 mm (2 ft)
    • Blade extension, right hand, 610 mm (2 ft)
    • Counterweight
    • Cutting edges, curved
    • Endbits, overlay
    • Front lift group, mounting
    • Front lift group, mechanical
    • Grader bit, narrow and super penetration
    • Mid-Mount Scarifier, Package
    • 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
    • Ripper, rear
    • Ripper tooth
    • Scarifier, front
    • Snow Arrangement
    • Snow Wing Ready Package
    • Tow hitch
  • Machine Arrangements
    • Canadian Arrangement
    • European Arrangement
    • TUV Roading Arrangement
  • Optional Tire Arrangements
    • Rim Size - 9 × 24; Wheel Group - Single-Piece; Tires - 14.0R24
    • Rim Size - 13 × 25; Wheel Group - Single-Piece; Tires - 17.5R25
    • Rim Size - 10 × 24; Wheel Group - Multi-Piece; Tires - 14.0R24
    • Rim Size - 10 × 24; Wheel Group - Multi-Piece; Tires - 14.0-24
    • Rim Size - 14 × 25; Wheel Group - Multi-Piece; Tires - 17.5R25
    • Rim Size - 14 × 25; Wheel Group - Multi-Piece; Tires - 17.5-25
    • Note: Consult your dealer for individual tire width, size and brand.

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