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Overview

Designed for maximum operator comfort, the Cat® 12M optimizes operational efficiency and productivity. Get the work done with the M Series Motor graders. With ease of operation and service, get the most out of your investment to build and maintain roads.

Engine

Units:
Base Power (1st Gear) - Net 183.0 HP 136.0 kW Less
Engine Model Cat C7 ACERT™ Cat C7 ACERT™ Less
Bore 4.3 in 110.0 mm Less
Stroke 5.0 in 127.0 mm Less
Speed at Rated Power 2,000 rpm 2,000 rpm Less
Base Power (1st Gear) - Net - Metric 186.0 HP 136.0 kW Less
Maximum Torque - VHP Plus 776.0 lb/ft 1052.0 N·m Less
Torque Rise - VHP Plus 39% 39% Less
VHP Plus Range - Net 136-159 kW (183-213 hp) 136-159 kW (183-213 hp) Less
VHP Plus Range - Net - Metric 136-159 kW (186-216 hp) 136-159 kW (186-216 hp) Less
Displacement 439.0 in³ 7.2 l Less
Number of Cylinders 6 6 Less
Derating Altitude 10000.0 ft 3048.0 m Less
Standard - Fan Speed - Maximum 1,450 rpm 1,450 rpm Less
Standard - Fan Speed - Minimum 600 rpm 600 rpm Less
Standard - Ambient Capability 109.0 °F 43.0 °C Less
High Ambient - Fan Speed - Maximum 1,650 rpm 1,650 rpm Less
High Ambient - Fan Speed - Minimum 600 rpm 600 rpm Less
High - Ambient Capability 122.0 °F 50.0 °C Less

Power Train

Forward/Reverse Gears 8 Forward/6 Reverse 8 Forward/6 Reverse Less
Transmission Direct drive, power shift, countershaft Direct drive, power shift, countershaft Less
Brakes - Service Multiple oil disc Multiple oil disc Less
Brakes - Service - Surface Area 3565.0 in² 23000.0 cm² Less
Brakes - Parking Multiple oil disc Multiple oil disc Less
Brakes - Secondary Dual circuit control system Dual circuit control system Less

Hydraulic System

Circuit Type Electro-hydraulic load sensing, closed center Electro-hydraulic load sensing, closed center Less
Pump Type Variable piston Variable piston Less
Pump Output 55.7 gal/min 210.0 l/min Less
Maximum System Pressure 3500.0 psi 24150.0 kPa Less
Standby Pressure 450.0 psi 3100.0 kPa Less

Operating Specifications

Top Speed - Forward 29.0 mile/h 46.6 km/h Less
Top Speed - Reverse 22.9 mile/h 36.8 km/h Less
Turning Radius - Outside Front Tires 24.93 ft 7.6 m Less
Steering Range - Left/Right 47.5 degrees 47.5 degrees Less
Articulation Angle - Left/Right 20 degrees 20 degrees Less
Forward - 1st 2.5 mile/h 4.0 km/h Less
Forward - 2nd 2.4 mile/h 5.5 km/h Less
Forward - 3rd 5.0 mile/h 8.0 km/h Less
Forward - 4th 6.8 mile/h 11.0 km/h Less
Forward - 5th 10.6 mile/h 17.1 km/h Less
Forward - 6th 14.5 mile/h 23.3 km/h Less
Forward - 7th 19.9 mile/h 32.0 km/h Less
Forward - 8th 29.0 mile/h 46.6 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 8.4 mile/h 13.5 km/h Less
Reverse - 5th 15.7 mile/h 25.3 km/h Less
Reverse - 6th 22.9 mile/h 36.8 km/h Less

Service Refill

Fuel Capacity 110.0 gal (US) 416.0 l Less
Cooling System 10.6 gal (US) 40.0 l Less
Hydraulic System - Tank 16.9 gal (US) 64.0 l Less
Transmission - Differential - Final Drives 16.9 gal (US) 64.0 l Less
Engine Oil 6.6 gal (US) 25.0 l Less
Tandem Housing - Each 16.9 gal (US) 64.0 l Less
Front Wheel Spindle Bearing Housing 0.13 gal (US) 0.5 l Less
Circle Drive Housing 1.8 gal (US) 7.0 l Less

Frame

Drawbar - Width 3.0 in 76.2 mm Less
Circle - Diameter 60.2 in 1530.0 mm Less
Circle - Blade Beam Thickness 1.6 in 40.0 mm Less
Drawbar - Height 6.0 in 152.0 mm Less
Front Frame Structure - Height 12.0 in 305.0 mm Less
Front Frame Structure - Thickness 0.6 in 16.0 mm Less
Front Frame Structure - Width 12.0 in 305.0 mm Less
Front Axle - Height to Center 23.0 in 571.0 mm Less
Front Axle - Wheel Lean - Left/Right 18 degrees 18 degrees Less
Front Axle - Total Oscillation per Side 32 degrees 32 degrees Less

Tandems

Height 19.9 in 506.0 mm Less
Width 7.9 in 201.0 mm Less
Sidewall Thickness - Inner 0.6 in 16.0 mm Less
Sidewall Thickness - Outer 0.7 in 18.0 mm Less
Drive Chain Pitch 2.0 in 50.8 mm Less
Wheel Axle Spacing 60.0 in 1523.0 mm Less
Tandem Oscillation - Front Up 15 degrees 15 degrees Less
Tandem Oscillation - Front Down 25 degrees 25 degrees Less

Moldboard

Blade Width 12.0 ft 3.7 m Less
Arc Radius 16.3 in 413.0 mm Less
Throat Clearance 6.5 in 166.0 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 - Base GVW 23832.0 lb 10810.0 kg Less
Blade Pull - Maximum GVW 30170.0 lb 13685.0 kg Less
Down Pressure - Base GVW 15969.0 lb 7244.0 kg Less
Down Pressure - Maximum GVW 25880.0 lb 11739.0 kg Less
Height 24.0 in 610.0 mm Less
Thickness 0.87 in 22.0 mm Less
Width 12.0 ft 3.7 m Less

Blade Range

Circle Centershift - Right 28.7 in 728.0 mm Less
Circle Centershift - Left 27.4 in 695.0 mm Less
Moldboard Sideshift - Right 26.0 in 660.0 mm Less
Moldboard Sideshift - Left 20.1 in 510.0 mm Less
Maximum Blade Position Angle 90 degrees 90 degrees Less
Blade Tip Range - Forward 40 degrees 40 degrees Less
Blade Tip Range - Backward 5 degrees 5 degrees Less
Maximum Lift Above Ground 18.9 in 480.0 mm Less
Maximum Depth of Cut 28.1 in 715.0 mm Less
Maximum Shoulder Reach Outside of Tires - Left 70.5 in 1790.0 mm Less
Maximum Shoulder Reach Outside of Tires - Right 77.9 in 1978.0 mm Less

Ripper

Ripper Shank Holder Spacing 21.0 in 533.0 mm Less
Ripping Depth - Maximum 16.8 in 428.0 mm Less
Ripper Shank Holders 5 5 Less
Penetration Force 20280.0 lb 9199.0 kg Less
Pry-Out Force 25664.0 lb 11641.0 kg Less
Machine Length Increase, Beam Raised 36.2 in 919.0 mm Less

Scarifier

Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holder Spacing 4.6 in 116.0 mm Less
Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holders 5/11 5/11 Less
Front, V-Type, 5 or 11 Tooth - Scarifying Depth, Maximum 18.4 in 467.0 mm Less
Front, V-Type, 5 or 11 Tooth - Working Width 47.4 in 1205.0 mm Less
Mid, V-Type - Scarifier Shank Holder Spacing 4.6 in 116.0 mm Less
Mid, V-Type - Scarifier Shank Holders 11 11 Less
Mid, V-Type - Scarifying Depth, Maximum 11.5 in 292.0 mm Less
Mid, V-Type - Working Width 46.6 in 1184.0 mm Less
Rear - Scarifying Depth, Maximum 10.5 in 266.0 mm Less
Rear - Working Width 91.0 in 2300.0 mm Less
Rear - Scarifier Shank Holders 9 9 Less
Rear - Scarifier Shank Holder Spacing 10.5 in 267.0 mm Less

Weights

Operating Weight - Typically Equipped 40565.0 lb 18400.0 kg Less
Gross Vehicle Weight - Typically Equipped 40565.0 lb 18400.0 kg Less
Gross Vehicle Weight - Maximum - Rear Axle 33523.0 lb 15206.0 kg Less
Gross Vehicle Weight - Base - Front Axle 9303.0 lb 4220.0 kg Less
Gross Vehicle Weight - Base - Rear Axle 26479.0 lb 12011.0 kg Less
Gross Vehicle Weight - Maximum - Total 48601.0 lb 22045.0 kg Less
Gross Vehicle Weight - Base - Total 35783.0 lb 16231.0 kg Less
Gross Vehicle Weight - Maximum - Front Axle 15077.0 lb 6839.0 kg Less
Gross Vehicle Weight - Typically Equipped - Front Axle 11221.0 lb 5090.0 kg Less
Gross Vehicle Weight - Typically Equipped - Rear Axle 29343.0 lb 13310.0 kg Less
Gross Vehicle Weight - Typically Equipped - Total 40565.0 lb 18400.0 kg Less

Dimensions

Height - Top of Cab Product Link 133.0 in 3378.0 mm Less
Length - Push Plate to Ripper 399.1 in 10136.0 mm Less
Length - Push Plate to Ripper Retracted 386.5 in 9818.0 mm Less
Height - Top of Cab 130.2 in 3308.0 mm Less
Width - Outside Front Tires 98.9 in 2511.0 mm Less
Length - Front Axle to Mid Tandem 241.1 in 6123.0 mm Less
Length - Front Tire to Rear of Machine 344.6 in 8754.0 mm Less
Length - Front Axle to Moldboard 100.5 in 2552.0 mm Less
Length - Between Tandem Axles 60.0 in 1523.0 mm Less
Width - Outside Rear Tires 98.9 in 2511.0 mm Less
Width - Tire Center Lines 84.3 in 2140.0 mm Less
Height - Front Axle Center 23.5 in 596.0 mm Less
Height - Exhaust Stack 121.1 in 3076.0 mm Less
Height - Top of Cylinders 119.7 in 3040.0 mm Less
Ground Clearance - Rear Axle 13.3 in 339.0 mm Less

Standards

Brakes ISO 3450:1996 ISO 3450:1996 Less
ROPS/FOPS ISO 3471:2008, ISO 3449:2005 Level II ISO 3471:2008, ISO 3449:2005 Level II Less
Sound ISO 6394:2008, ISO 6395:2008 ISO 6394:2008, ISO 6395:2008 Less
Steering ISO 5010:2007 ISO 5010:2007 Less

Net Power - VHP Plus

Gear - Forward 1st 183.0 HP 136.0 kW Less
Gear - Forward 2nd 188.0 HP 140.0 kW Less
Gear - Forward 3rd 193.0 HP 144.0 kW Less
Gear - Forward 4th 198.0 HP 148.0 kW Less
Gear - Forward 5th 203.0 HP 151.0 kW Less
Gear - Forward 6th 203.0 HP 151.0 kW Less
Gear - Forward 7th 208.0 HP 155.0 kW Less
Gear - Forward 8th 213.0 HP 159.0 kW Less
Gear - Reverse 1st 183.0 HP 136.0 kW Less
Gear - Reverse 2nd 188.0 HP 140.0 kW Less
Gear - Reverse 3rd 193.0 HP 144.0 kW Less

Operator Station

Steering and Implement Controls

Engine

Power Train

Structures and Drawbar-Circle-Moldboard

Hydraulics

Integrated Technologies

Safety

Serviceability and Customer Support

Smart Machine Systems

Work Tools and Attachments

Sustainability

12M 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
  • Differential Lock/Unlock, Automatic
  • Drain, engine oil, ecology
  • Electronic over speed protection
  • Engine Cat C7 with ACERT Technology, diesel, with automatic engine derate and idle control. Note: Engine meets non-current U.S. EPA Tier 3 or EU Stage IIIA emission standards.
  • Engine Idle Shutdown (EIS)
  • Fuel tank, 416 L (110 gal), ground level access and sediment drain
  • Fuel-water separator
  • Muffler, underhood
  • 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
  • Variable Horsepower Plus (VHP Plus)

ELECTRICAL
  • Alarm, back up
  • Alternator, 80 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
  • 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
  • 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 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
  • 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
  • Ground level fueling
  • 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
  • Secondary steering
  • Serviceability, left-hand side
  • S•O•SSM ports: engine, hydraulic, transmission, coolant, fuel
  • Tandem walkway/guards
  • Tool box
  • Tow hitch

12M Optional Equipment

ELECTRICAL
  • Alternator, 150 ampere
  • Batteries: extreme duty, 1,400 CCA
  • Converter, communication (CB)
  • 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
  • Axle hose guard
  • Fenders, front
  • Fenders, rear
  • Sound guard (bottom)
  • Transmission guard

OPERATOR ENVIRONMENT
  • Deluxe CD radio with MP3 and Bluetooth technology
  • 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
  • Precleaner, snow/debris
  • Transmission, autoshift

OTHER ATTACHMENTS
  • AccuGrade ARO
  • Accumulators, blade lift
  • Camera, rearview
  • Cat Grade Control Cross Slope
  • Cat Product Link 321 (Satellite)
  • Cat Product Link 522 (Cellular)
  • Compressor/tank, air
  • Heater, engine coolant: 120V
  • Heater, engine coolant: 240V
  • Hydraulic arrangements with one or more additional hydraulic valves are available for ripper, dozer, snow wings, front lift group, mid-mount scarifier.
  • Security system
  • Snow wing mounting, frame ready
  • Sound suppression
  • Starting aid, ether

WORK TOOLS/GROUND ENGAGING TOOLS
  • Blade extension, left hand, 610 mm (2 ft)
  • Endbits, overlay
  • Front lift group, mounting
  • Front lift group
  • Mid-Mount Scarifier, Package
  • Mid-Mount Scarifier, Mounting
  • Moldboard: 4267 × 610 × 22 mm (14 ft × 24 in × 7/8 in)
  • Moldboard: 4267 × 686 × 25 mm (14 ft × 27 in × 1 in)
  • Push plate
  • Ripper, mounting
  • Ripper, rear
  • Ripper tooth
  • Scarifier, front

MACHINE ARRANGEMENTS
  • Snow Arrangement

OPTIONAL TIRE ARRANGEMENTS
  • Rim Size - 9 x 24; Wheel Group - Single-Piece; Tires - 13.00-24
  • Rim Size - 9 x 24; Wheel Group - Single-Piece; Tires - 14R24
  • Rim Size - 13 x 25; Wheel Group - Single-Piece; Tires - 17.5R25
  • Rim Size - 10 x 24; Wheel Group - Multi-Piece; Tires - 14.00-24
  • Rim Size - 10 x 24; Wheel Group - Multi-Piece; Tires - 14.00R24
  • Rim Size - 10 x 24; Wheel Group - Multi-Piece; Tires - 17.5R25