Caterpillar 12M3 Motor Graders
Caterpillar 12M3
5+
sold in last yearGeneral overview
Caterpillar 12M3 is a motor grader designed for grading and surface-shaping work in construction and road-building environments. It is powered by a Cat C6.6 ACERT VHP engine rated at 127 kW (173 hp), with a net power output of 116 kW (158 hp). The model’s 14,522 kg (32,020 lb) operating weight supports stable operation during finish grading and material control.
The 12M3 uses a direct drive, power shift, countershaft powertrain with 8 forward and 6 reverse gears, aligning it with heavy-duty grading tasks that require controlled speed and directional flexibility. Its 4,000 mm (13 ft 1 in) moldboard provides a wide working span, while the grader also includes front and rear scarifier and ripper options for loosening and conditioning surface material.
Year
2015
Country of manufacturing
United States
General specifications
Dimensions
Length
Height
Width
9,000 mm
~354.3 in
3,000 mm
~118.1 in
2,480 mm
~97.6 in
Engine Power
173 hp
Operating Weight
14,522 kg
Moldboard Width
4,000 mm
Additional specifications
Displacement
6 cu(m)
Fuel tank
341 L
Cooling system
39 L
Overall length w/header
9,000 mm
Height to top of cab
3,000 mm
Wheelbase
6,000 mm
Number of Cylinders
6
Maximum Travel Speed - High
45 km/h
Engine Oil
16 L
Maximum Digging Depth
470 mm
Net Power (ISO 9249)
158 hp
Manufacturer and Model
Cat C6.6 ACERT VHP
Net Peak Torque
936 Nm
Hydraulic System
61 L
Main Pump Type
Variable piston
Powertrain Type
direct drive, power shift, countershaft
Gears Forward
8
Gears Reverse
6
Front Axle Oscillation (total)
32 deg
Front Axle Wheel Lean Angle (each direction)
18 deg
Steering (Turning Radius)
7 m
Steering (Articulation)
20 deg
Maximum Pump Flow
193 L/min
Maximum System Pressure
24,131 kPa
Blade Range - Lift Above Ground
mm
Blade Range - Blade Side Shift (right or left)
663 mm
Shoulder Reach Outside Wheels (frame straight, right or left)
1,900 mm
Blade Pull At Maximum Operating Weight
12,004 kg
Height to Top of Exhaust
2,850 mm
Height to Top of Blade-Lift Cylinders
2,890 mm
Tandem Axle Spacing
2,000 mm
Blade Base
3,000 mm
Overall Length With Push Block and Ripper
9,890 mm
Circle Side Shift (right)
660 mm
Base Length
4,000 mm
Height (measured along arc, including cutting edge)
610 mm
Moldboard Thickness
25 mm
Cutting Edge - Thickness
25 mm
Cutting Edge - Width
152 mm
Scarifiers - Type
Front V-Type; Mid Straight or V-Type; Rear
Width of Cut
2,310 mm
Shank - Spacing
120 mm
Rear Ripper/Scarifier - Type
Ripper
Rear Ripper/Scarifier - Width of Cut
2,310 mm
Rear Ripper/Scarifier - Number of Shanks/Teeth
9
Rear Ripper/Scarifier - Maximum Depth
270 mm
Force - Penetration
8,578 kg
Force - Pry-Out
11,781 kg
Ground Clearance (front axle)
1,000 mm
Operating Weight - Front
4,008 kg
Operating Weight - Rear
10,514 kg
Circle Diameter
1,530 mm
Operating Weights - Total
14,522 kg
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Most popular
What is the average price of a Caterpillar 12M3?
No confirmed market price is supplied. Check current listings and compare machine condition, location, and configuration.
What are the key advantages of the Caterpillar 12M3?
The supplied specifications show a 4,000 mm (157.5 in) moldboard, 8 forward and 6 reverse gears, a 45 km/h (28 mph) maximum high travel speed, and 1,900 mm (74.8 in) shoulder reach outside the wheels.
What type of engine does the 12M3 use?
The 12M3 uses a Cat C6.6 ACERT VHP engine with 6 cylinders and 6 m³ (7.85 cu yd) displacement.
How much horsepower does the 12M3 have?
Engine Power is 129 kW (173 hp). Net Power (ISO 9249) is 117.8 kW (158 hp).
What fuel does the Caterpillar 12M3 use?
The supplied specifications do not confirm the fuel type. They list a fuel tank capacity of 341 L (90.1 US gal).
What jobs is this Motor Graders best suited for?
The supplied specifications support grading work that uses a 4,000 mm (157.5 in) moldboard, side shifting, shoulder reach, and front or rear scarifying and ripping. The listed data does not identify specific job types or site applications.
What is the expected lifespan of the 12M3?
The supplied data does not provide an expected service life. For a used machine, inspect maintenance records, engine condition, powertrain operation, hydraulics, moldboard components, scarifiers, ripper, tires, and structural wear.
What should a buyer check when purchasing a used Motor Graders?
Check maintenance records and test the engine, direct-drive power-shift countershaft powertrain, steering, articulation, hydraulic system, moldboard movement, scarifiers, rear ripper, tires, brakes, cab controls, and signs of frame or blade wear.
