12M3 AWD Motor Grader

12M3 AWD Motor Grader

M Series Motor Graders

Overview

The 12M3 AWD gives you the muscle you need for everyday jobs, and helps you get more done in ground conditions where traction can be a challenge. M Series 3 Motor Graders meet U.S. EPA Tier 4 Final/EU Stage V emission standards.

Operator Station
Visibility Good visibility is key to your safety and efficiency. Angled cab doors, tapered engine enclosure and a sloped rear window make it easy to see the moldboard and tires, as well as behind the machine. An optional rear vision camera further enhances lines of sight all around the machine.
Machine and Implement Controls
Two electro-hydraulic joysticks with electronically adjustable control pods help position operators for optimal comfort, visibility and productive operation.
Engine
A Cat C9.3 ACERT engine gives you the performance you need to maintain consistent grading speeds for maximum productivity. Every U.S. EPA Tier 4 Final/EU Stage IV ACERT engine is equipped with a combination of proven electronic, fuel, air and aftertreatment components. Applying proven technologies s...
Emissions Technology
Emissions reduction technology on the M Series 3 Motor Grader is designed to be transparent, with no action required from the operator. There is no need to stop. Regeneration runs automatically at cold start-up and, if needed, in the background while you work.
Power Train
  • Standard Automatic Differential Lock/Unlock monitors machine and application parameters to unlock/re-lock the differential during operation, improving production and enhancing comfort while protecting the power train.
  • Full Electronic Clutch Pressure Control optimizes inching modulation for smooth shifts and directional changes.
Structures and Drawbar-Circle-Moldboard
Caterpillar designs motor grader frame and drawbar components to give you performance and durability. The one-piece forged steel circle stands up to high stress loads, and a sacrificial wear system helps keep your service time and costs down. The articulation hitch features a large tapered roller be...
Hydraulics
Responsive Hydraulics A proven load-sensing system and advanced electro-hydraulics give you superior implement control and responsive hydraulic performance that helps make your operator's job easier. Continuously matching hydraulic flow/pressure to power demands creates less heat and reduces power consumption.
  • Consistent, Predictable Movement - Proportional Priority Pressure-Compensating (PPP-C) valves have different flow rates for the head and rod ends of the cylinder, so you can count on consistent, predictable implement response.
All Wheel Drive (AWD)
If you work in soft underfoot conditions where traction can be a challenge, optional All Wheel Drive (AWD) can give you the additional power to the ground you need to work more efficiently in mud, gravel, sand or snow. The added traction helps reduce sliding on side slopes.
  • Dedicated left and right pumps give you more precise hydraulic control. The infinitely variable pumps and motors maximize torque in each gear.
Integrated Technologies
Cat Connect makes smart use of technology and services to improve your job site efficiency. Using the data from technology-equipped machines, you'll get more information and insight into your equipment and operations than ever before. Cat Connect technologies offer improvements in these key areas: E...
Safety
Operator Presence Monitoring System Standard system keeps the parking brake engaged and hydraulic implements disabled until the operator is seated and the machine is ready for operation.
Work Tools and Attachments
Moldboard Options The 12M3 motor grader comes equipped with a 3.7 m (12 ft) moldboard. An optional 4.3 m (14 ft) blade is also available.
Smart Machine Systems
  • Cat Messenger, combined with full systems integration, enhances diagnostic capability for quick analysis of critical data.
  • Electronic Technician (Cat ET) lets service technicians access stored diagnostic data and configure machine parameters through the Cat Data Link.
  • Low Battery Elevated Idle raises idle speed when low system voltage is detected, ensuring adequate system voltage and improving battery reliability.
Serviceability and Customer Support
Cat motor graders are designed to help you increase uptime and reduce costs. Grouped service points and extended service intervals save maintenance time. New optional LED lights in the left hand compartment makes it more convenient to service the machine in low light.
Sustainability
Fuel Efficiency
  • Integrated machine systems and technologies improve productivity for greater accuracy, allowing the machine to do more work per gallon of fuel.
  • New Economy Mode feature allows the machine to work in the most efficient engine speed range to help reduce fuel use.
Operator Station
Visibility Good visibility is key to your safety and efficiency. Angled cab doors, tapered engine enclosure and a sloped rear window make it easy to see the moldboard and tires, as well as behind the machine. An optional rear vision camera further enhances lines of sight all around the machine.
In-Dash Instrument Cluster A redesigned message display shows machine performance and diagnostic information, including DEF tank levels. Now located in the center console, it also displays Cat Grade Control Cross Slope readings conveniently in front of the operator.
Comfort and Control Experience the most comfortable cab in the industry. Joystick controls replace levers, so hand and arm movement is reduced by 78%, helping reduce operator fatigue for better productivity. Rocker and control switches are in easy reach. An updated seat with softer cushions and three-position cushion tilt adds to your overall comfort. You can even upgrade to a heated or heated/ventilated seat. An optional seat belt indicator feature is also available. Control pods can be adjusted electronically, making it easy to set your ideal operating position. Multiple isolation mounts significantly reduce sound and vibration for a more relaxed work environment. The high capacity Heating, Ventilation and Air Conditioning (HVAC) system dehumidifies and pressurizes the cab, seals out dust and helps keep windows clear. Pop-out louvers circulate fresh air. An optional deluxe radio with CD features MP3 and Bluetooth technology.
Machine and Implement Controls
Two electro-hydraulic joysticks with electronically adjustable control pods help position operators for optimal comfort, visibility and productive operation.
Joystick Functions The left joystick controls machine direction, steering, articulation, return-to-center, wheel lean, gear selection, left moldboard lift cylinder and float. The right joystick controls drawbar, circle and moldboard functions as well as electronic throttle control and manual differential lock/unlock. The steer tire angle matches the joystick position. A brake tensioning system holds the joystick in position until the operator moves it. The steering control automatically reduces steering sensitivity at higher ground speeds for predictable control. Infinitely variable roller switches control the rear ripper and/or front lift group (when equipped). Optional Programmable Auxiliary Hydraulic Pod controls up to six additional hydraulic circuits.
Electronic Throttle Control Electronic Throttle Control helps improve productivity by providing the best match of horsepower and torque for the demands of the application.
Articulation Return-to-Center Automatically returns the machine to a straight frame position from any angle with the touch of a button.
Selectable Blade Lift Modes Choose the blade lift modulation mode that best fits your application or operating style: Fine, Normal, or Coarse.
Engine
A Cat C9.3 ACERT engine gives you the performance you need to maintain consistent grading speeds for maximum productivity. Every U.S. EPA Tier 4 Final/EU Stage IV ACERT engine is equipped with a combination of proven electronic, fuel, air and aftertreatment components. Applying proven technologies systematically and strategically helps meet your high expectations for productivity, fuel efficiency, reliability and service life.
Hydraulic Demand Fan The hydraulic demand fan automatically adjusts speed according to cooling requirements. When cooling demand is reduced, you benefit from more power to the ground and improved fuel efficiency.
Engine Idle Shutdown Timer This standard feature can be software-enabled by your Cat dealer to shut down the engine after a set period of time to save you fuel and help reduce emissions.
Emissions Technology
Emissions reduction technology on the M Series 3 Motor Grader is designed to be transparent, with no action required from the operator. There is no need to stop. Regeneration runs automatically at cold start-up and, if needed, in the background while you work.
Aftertreatment Technologies Caterpillar designed Tier 4 Interim products with Tier 4 Final standards in mind. To meet the additional 80 percent reduction in NOx emissions required by EPA Tier 4 Final/EU Stage IV emission standards, Caterpillar engineers only needed to add one new system to the already proven aftertreatment solution in use, Selective Catalytic Reduction (SCR).
Diesel Exhaust Fluid Selective Catalytic Reduction utilizes Diesel Exhaust Fluid (DEF), which can be conveniently filled from ground level. Simply refill the DEF tank when you refuel. A gauge on the dash shows your fluid level. When you turn the machine off, a pump will automatically purge the DEF lines. A light located inside the rear engine compartment will turn off, telling you the purge is complete and that it is safe to turn off the electrical disconnect. If the engine/aftertreatment temperatures are high, a Delayed Engine Shutdown will activate automatically to cool the machine and then purge the lines. For complete aftertreatment information, please refer to your machine's Operation and Maintenance Manual.
Power Train
  • Standard Automatic Differential Lock/Unlock monitors machine and application parameters to unlock/re-lock the differential during operation, improving production and enhancing comfort while protecting the power train.
  • Full Electronic Clutch Pressure Control optimizes inching modulation for smooth shifts and directional changes.
  • Programmable Autoshift option simplifies operation by allowing you to program the transmission to shift at optimal points to match your application.
  • New standard Economy Mode can be turned on to help save fuel by reducing engine speed so the machine works in a more efficient range. The average fuel savings is up to 10 percent, depending on the application.
  • Power Shift Countershaft Transmission maximizes power to the ground.
  • Engine Over-Speed Protection prevents downshifting until an acceptable safe travel speed has been established.
Front and Rear Axles The sealed spindle keeps front axle bearings lubricated and protected from contaminants. The Cat “Live Spindle” design places the larger tapered roller bearing on the outside, where the load is greater, extending bearing life. A bolt-on modular rear axle improves serviceability and contamination control with easy access to differential components.
Hydraulic Brakes Oil-bathed multi-disc service brakes are hydraulically actuated for smooth, predictable braking and lower operating costs. Brakes are located at each tandem wheel and have a large total brake surface area to give you dependable stopping power and longer life.
Structures and Drawbar-Circle-Moldboard
Caterpillar designs motor grader frame and drawbar components to give you performance and durability. The one-piece forged steel circle stands up to high stress loads, and a sacrificial wear system helps keep your service time and costs down. The articulation hitch features a large tapered roller bearing to carry loads evenly and smoothly. It is sealed to prevent contamination and a locking pin prevents articulation for safety during service or transport.
Easy Maintenance for More Uptime The drawbar, circle and moldboard are designed to make it easy to keep the components tight. One person can easily adjust or replace the patented top-adjust drawbar wear inserts from the top of the drawbar plate, reducing downtime to save you money. Durable nylon composite wear inserts maximize circle torque and component life. Sacrificial brass wears strips between the blade mounting group and moldboard can be easily adjusted and replaced. The Shimless Moldboard Retention System uses vertical and horizontal adjusting screws to keep moldboard wear strips aligned for reduced blade chatter and precise blade control.
Blade Angle and Moldboard An aggressive blade angle, optimized moldboard curvature and large throat clearance help you work more efficiently by allowing material to roll more freely along the blade. Heat-treated rails, hardened cutting edges and end bits, and heavy duty bolts to give you greater moldboard reliability and long service life. The link bar allows extreme moldboard positioning for easier bank sloping and ditch cutting/cleaning.
Hydraulics
Responsive Hydraulics A proven load-sensing system and advanced electro-hydraulics give you superior implement control and responsive hydraulic performance that helps make your operator's job easier. Continuously matching hydraulic flow/pressure to power demands creates less heat and reduces power consumption.
  • Consistent, Predictable Movement - Proportional Priority Pressure-Compensating (PPP-C) valves have different flow rates for the head and rod ends of the cylinder, so you can count on consistent, predictable implement response.
  • Balanced Flow - Hydraulic flow is proportioned to give you confidence that all implements will operate simultaneously without slowing the engine or speed of some implements.
Blade Float Allows the blade to move freely under its own weight. By floating both cylinders, the blade can follow the contours of the ground. Floating only one cylinder permits the toe of the blade to follow a hard surface while the operator controls the slope with the other lift cylinder.
Independent Oil Supply Large, separate hydraulic oil supplies prevent cross-contamination and provide proper oil cooling, which reduces heat build-up and extends component life. Cat XT™ hose allows high pressures for maximum power and reduced downtime.
All Wheel Drive (AWD)
If you work in soft underfoot conditions where traction can be a challenge, optional All Wheel Drive (AWD) can give you the additional power to the ground you need to work more efficiently in mud, gravel, sand or snow. The added traction helps reduce sliding on side slopes.
  • Dedicated left and right pumps give you more precise hydraulic control. The infinitely variable pumps and motors maximize torque in each gear.
  • AWD automatically increases horsepower to maximize your power to the ground.
  • Standard Hydrostatic Mode disengages the transmission and provides hydraulic power to the front wheels only. Infinitely variable ground speed between 0-8 km/h (0-5 mph) is ideal for precise finish work.
  • Cat Steering Compensation System enables a “powered turn” by adjusting the outside front tire speed up to 50% faster than the inside tire. This gives you improved control, reduces surface damage and greatly reduces turning radius in poor underfoot conditions.
Integrated Technologies
Cat Connect makes smart use of technology and services to improve your job site efficiency. Using the data from technology-equipped machines, you'll get more information and insight into your equipment and operations than ever before. Cat Connect technologies offer improvements in these key areas: Equipment Management - increase uptime and reduce operating costs. Productivity - monitor production and manage job site efficiency. Safety - enhance job site awareness to keep your people and equipment safe. Featured Cat Connect technologies include:
Link Link technologies provide wireless capability to machines enabling two-way transfer of information collected by on-board sensors, control modules, and other Cat Connect technologies using off-board apps, such as our VisionLink software.
Product Link™/VisionLink® Product Link takes the guesswork out of equipment management. Track location, hours, fuel usage, productivity, idle time, diagnostic codes and more through the online VisionLink interface. Manage your fleet in real time so you can maximize efficiency, improve productivity, and lower operating costs.
Grade Grade technologies combine digital design data, in-cab guidance, and automatic blade controls to enhance grading accuracy, reduce rework, and lower costs related to production earthmoving and rough, fine and finish grade applications.
Cat Grade Control Cross Slope Cat Grade Control Cross Slope is an optional fully integrated, factory installed system that helps your operator improve grading efficiency and more easily maintain accurate cross slopes. The system automatically controls one side of the blade, reducing manual operator inputs by as much as 50 percent. Experienced operators can maintain peak efficiency levels throughout more of the work day, while less experienced operators can be more productive faster. The system is job-ready from day one, and scalable for the future with AccuGrade™ upgrade kits that provide additional 2D and/or 3D control.
Cat AccuGrade AccuGrade is an optional dealer-installed grade control system that provides higher accuracy capabilities to the Cat Cross Slope system by adding Sonic, Laser, GPS, and/or Universal Total Station (UTS) technology when the job requires. In-cab guidance helps operators work more confidently and get to grade faster, in fewer passes, using less material, improving productivity and accuracy by nearly 50 percent over conventional methods. Grade stakes and checkers are minimized, making the job site safer and more cost effective. An AccuGrade Attachment Ready Option can be ordered as a factory or dealer-installed option. It includes built-in mounting points and internal wiring for easy installation of the AccuGrade system.
Safety
Operator Presence Monitoring System Standard system keeps the parking brake engaged and hydraulic implements disabled until the operator is seated and the machine is ready for operation.
Speed Sensitive Steering Standard function makes steering less sensitive as ground speed increases for greater operator confidence and control.
Secondary Steering System Standard feature automatically engages an electric hydraulic pump in case of a drop in steering pressure so the operator can steer the machine to a stop.
Hydraulic Lockout Disables all implement functions while still providing machine steering control. This standard safety feature is especially useful while roading.
Brake Systems Brakes are located at each tandem wheel to eliminate braking loads on the power train. Redundant brake systems utilize accumulators to enable stopping in case of machine failure.
Walkways and Grab Rails Perforated steel tandem walkways and convenient grab rails give you a sturdy platform when moving on, off and around the machine.
Circle Drive Slip Clutch Protects the drawbar, circle and moldboard from shock loads when the blade encounters an immovable object. This standard feature also reduces the possibility of abrupt directional changes in poor traction conditions.
Blade Lift Accumulators Help absorb impact loads to the moldboard by allowing vertical blade travel. This optional feature helps reduce wear and aids operator safety.
M Series 3 Safety Features
  • Optional rearview camera with in-cab monitor
  • New optional seat belt indicator light reminds operator to fasten safety belt
  • Grouped, ground level service points
  • Laminated front window glass
  • Optional LED Lighting
  • Ground-level electrical disconnect switch
  • Ground-level engine shutoff switch
  • Anti-glare paint eases night operation
  • Optional front and rear fenders
Work Tools and Attachments
Moldboard Options The 12M3 motor grader comes equipped with a 3.7 m (12 ft) moldboard. An optional 4.3 m (14 ft) blade is also available.
Ground Engaging Tools (GET) A variety of tools are available from Cat Work Tools, including cutting edges, graderbits and end bits, all designed for maximum service life and productivity.
Front Mounted Groups A front mounted push plate or front lift group are available. The front lift group can be combined with a front dozer blade or front scarifier for added versatility.
Rear Ripper/Scarifier Made to penetrate tough material fast and rip thoroughly for easier movement with the moldboard. The ripper includes three shanks (with holders for five). Nine scarifier shanks can also be added for additional versatility.
Snow Removal Work Tools Snow plow, snow wing and mounting options increase machine versatility and utilization throughout the year.
Smart Machine Systems
  • Cat Messenger, combined with full systems integration, enhances diagnostic capability for quick analysis of critical data.
  • Electronic Technician (Cat ET) lets service technicians access stored diagnostic data and configure machine parameters through the Cat Data Link.
  • Low Battery Elevated Idle raises idle speed when low system voltage is detected, ensuring adequate system voltage and improving battery reliability.
  • Automatic Engine Deration protects the engine by automatically lowering engine torque output and alerting the operator if critical conditions are detected.
Serviceability and Customer Support
Cat motor graders are designed to help you increase uptime and reduce costs. Grouped service points and extended service intervals save maintenance time. New optional LED lights in the left hand compartment makes it more convenient to service the machine in low light.
Unparalleled Dealer Support When it comes to supporting you, Cat dealers are second to none. From machine selection and purchase to maintenance support and rebuilds, Cat dealers have the experience and capabilities to help keep you up and running.
Sustainability
Fuel Efficiency
  • Integrated machine systems and technologies improve productivity for greater accuracy, allowing the machine to do more work per gallon of fuel.
  • New Economy Mode feature allows the machine to work in the most efficient engine speed range to help reduce fuel use.
Green House Gas Emissions
  • Reduced fuel consumption means reduced CO2 emissions.
  • M Series 3 Motor Graders meet U.S. EPA Tier 4 Final/EU Stage IV emission standards.
Material Efficiency and Lifecycle Costs
  • Replaceable wear parts save maintenance time and cost, and extend major component life.
  • Major components are built to be rebuilt, eliminating waste and saving customers money by giving the machine and/or major components a second - and even third - life.
  • Approximately 95% of machine materials can be recycled (ISO 16714) to conserve valuable natural resources and further enhance machine end-of-life value.
Sound • Reduced engine noise and quieter cabs mean lower operator and spectator sound levels.
Safety
  • Ecology drains help make draining fluids more convenient and help prevent spills.
  • Cartridge style hydraulic fluid filters provide safe clean draining of filters prior to replacement, helping to prevent fluid spills.
  • A variety of safety features help safeguard operators and others on the job site.

Standards

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

Dimensions

Ground Clearance - Rear Axle
13.3in
Height - Top of Cylinders
120in
Height - Exhaust Stack
128in
Height - Front Axle Center
23.5in
Width - Tire Center Lines
84.3in
Width - Outside Rear Tires
98.9in
Length - Between Tandem Axles
60in
Length - Front Axle to Moldboard
100in
Length - Front Tire to Rear of Machine
351in
Length - Front Axle to Mid Tandem
241in
Width - Outside Front Tires
98.9in
Length - Counterweight to Ripper
399in
Height - Top of Cab
130in

Weights - AWD

Gross Vehicle Weight - Base - Front Axle
10469lb
Operating Weight - Typically Equipped - Rear Axle
31507lb
Gross Vehicle Weight - Maximum - Rear Axle
38069lb
Gross Vehicle Weight - Maximum - Total
55144lb
Operating Weight - Typically Equipped - Front Axle
13107lb
Gross Vehicle Weight - Base - Rear Axle
29140lb
Operating Weight - Typically Equipped - Total
44614lb
Gross Vehicle Weight - Maximum - Front Axle
17075lb
Gross Vehicle Weight - Base - Total
39609lb

Weights

Operating Weight - Typically Equipped
44614lb

Scarifier

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

Ripper

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

Blade Range

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

Moldboard

Moldboard - Blade Width
12ft
Blade Down Pressure - Base GVW - AWD
17970lb
Blade Down Pressure - Maximum GVW - AWD
29309lb
Blade Pull - Maximum GVW - AWD
49630lb
Blade Pull - Base GVW - AWD
35649lb
End Bit - Thickness
0.6in
End Bit - Width
6in
Cutting Edge Thickness
0.6in
Cutting Edge Width
6in
Throat Clearance
6.5in
Arc Radius
16.3in
Moldboard - Thickness
0.87in
Moldboard - Height
24in
Blade Width
12ft

Tandems

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

Frame

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

Service Refill

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

Operating Specifications

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

Hydraulic System

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

Power Train

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

Engine

High - Ambient Capability
122°F
High Ambient - Fan Speed - Minimum
500 rpm
Derating Altitude
10000ft
High Ambient - Fan Speed - Maximum
1,550 rpm
Number of Cylinders
6
Displacement
567.5in³
AWD Off: Gear - Net Power - Reverse - 2nd
189HP
AWD Off: Gear - Net Power - Forward - 7th
231HP
AWD On: Gear - Net Power - Reverse - 1st
179HP
VHP Plus - Gear - Net Power - Forward 8th
231HP
AWD Off: Gear - Net Power - Forward - 3rd
210HP
Maximum Torque - VHP Plus
840lb/ft
AWD Off: Gear - Net Power - Forward - 6th
225HP
AWD On: Gear - Net Power - Reverse - 3rd-6th
200HP
AWD Off: Gear - Net Power - Reverse - 3rd-6th
200HP
VHP Plus - Gear - Net Power - Forward 4th
210HP
VHP Plus Range - Net - Metric
133-172 kW (181-234 hp)
AWD Range - Net - Metric
141-188 kW (192-255 hp)
Standard Capability
109°F
AWD Off: Gear - Net Power - Reverse - 1st
179HP
Maximum Torque - AWD On
920lb/ft
VHP Plus - Gear - Net Power - Forward 5th
215HP
Emissions
U.S. EPA Tier 4 Final/EU Stage IV
AWD On: Gear - Net Power - Forward - 6th
252HP
AWD On: Gear - Net Power - Forward - 8th
252HP
AWD Range - Net
141-188 kW (189-252 hp)
VHP Plus - Gear - Net Power - Forward 7th
225HP
VHP Plus - Gear - Net Power - Reverse 2nd
189HP
AWD On: Gear - Net Power - Reverse - 2nd
189HP
VHP Plus - Gear - Net Power - Forward 6th
220HP
AWD On: Gear - Net Power - Forward - 5th
252HP
VHP Plus Range - Net
133-172 kW (179-231 hp)
VHP Plus - Gear - Net Power - Reverse 1st
179HP
AWD On: Gear - Net Power - Forward - 3rd
225HP
Torque Rise
38%
AWD On: Gear - Net Power - Forward - 7th
252HP
AWD Off: Gear - Net Power - Forward - 5th
220HP
AWD Off: Gear - Net Power - Forward - 2nd
200HP
VHP Plus - Gear - Net Power - Forward 1st
179HP
AWD Off: Gear - Net Power - Forward - 8th
231HP
AWD Off: Gear - Net Power - Forward - 1st
189HP
VHP Plus - Gear - Net Power - Reverse 3rd-6th
200HP
VHP Plus - Gear - Net Power - Forward 3rd
200HP
High Ambient - Fan Speed - Standard
1,400 rpm
AWD Off: Gear - Net Power - Forward - 4th
215HP
Base Power (1st Gear) - Net - Metric
181HP
AWD On: Gear - Net Power - Forward - 1st
200HP
AWD On: Gear - Net Power - Forward - 4th
231HP
AWD On: Gear - Net Power - Forward - 2nd
220HP
VHP Plus - Gear - Net Power - Forward 2nd
189HP
Speed at Rated Power
2,000 rpm
Stroke
5.9in
Bore
4.5in
Engine Model
Cat® C9.3 ACERT™
Base Power (1st Gear) - Net
179HP

Standard/Optional Features

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
    • 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

Optional Equipment:

  • 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, AWD
    • 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
    • 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.

See how 12M3 AWD compares against frequently compared products

12M3 AWD M Series Motor Graders

Operating Weight - Typically Equipped
44614 lb
Base Power (1st Gear) - Net
179 HP
Maximum Depth of Cut
28.1 in
Selected Model

140 / 140 AWD Motor Graders

Operating Weight - Typically Equipped
42647 lb
Base Power (1st Gear) - Net
179 HP
Maximum Depth of Cut
28.1 in
View Full Specs

160 / 160 AWD Motor Graders

Operating Weight - Typically Equipped
45547 lb
Base Power (1st Gear) - Net
221 HP
Maximum Depth of Cut
29.5 in
View Full Specs

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