Caterpillar 12M Motor Graders
Caterpillar 12M
5+
sold in last yearGeneral overview
The Caterpillar 12M is a motor grader designed for construction grading and road-building work. It is powered by a Cat C7 ACERT engine rated at 135 kW (183 hp) and has an operating weight of 18,400 kg (40,570 lb), giving it the mass and output needed for controlled surface shaping and earthmoving tasks.
The model uses a direct drive, power shift, countershaft transmission with 8 forward gears and 6 reverse gears. Its 3.7 m (12.1 ft) moldboard, 480 mm (19 in) lift above ground, 510 mm (20 in) blade side shift, and 40° forward / 50° back pitch support a wide grading range. Maximum travel speed is 46.6 km/h (29 mph), which helps when moving between work areas.
Year
2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024
Country of manufacturing
United States
General specifications
Dimensions
Width
Height
Length
Weight
2,511 mm
~98.9 in
3,308 mm
~130.2 in
8,754 mm
~344.6 in
18,400 kg
~40,565.1 lb
Engine Power
183 hp
Operating Weight
18,400 kg
Moldboard Width
3.7 m
Additional specifications
Emission standard level
U.S. EPA Tier 3 / EU IIIA
Displacement
439 cu(in)
Transmission type
Direct drive, power shift, countershaft
Fuel tank
416 L
Hydraulic system type
Cooling system
40 L
Number of Cylinders
6
Battery Voltage
24V
Engine Model
Cat C7 ACERT
Maximum Travel Speed - High
46.6 km/h
Engine Oil
25 L
Net Power (ISO 9249)
183 hp
Net Peak Torque
1,052 Nm
Alternator Rating
80 amp
Cab Height
3.3 m
Lights
Headlights, high – Headlights, low – Working lights, basic – Working lights, plus – Warning: beacon or strobe – Mounting for warning light
Main Pump Type
Variable piston
Gears Forward
8
Gears Reverse
6
Front Axle Oscillation (total)
32 deg
Front Axle Wheel Lean Angle (each direction)
18 deg
Steering (Turning Radius)
7.6 m
Steering (Articulation)
20 deg
Maximum Pump Flow
210 L/min
Maximum System Pressure
3,500 psi
Pump Displacement
Blade Range - Lift Above Ground
480 mm
Blade Range - Blade Side Shift (right or left)
510 mm
Pitch at Ground Line - Forward
40 deg
Pitch at Ground Line - Back
50 deg
Shoulder Reach Outside Wheels (frame straight, right or left)
1,978 mm
Blade Pull At Maximum Operating Weight
13,685 kg
Height to Top of Exhaust
3.07 m
Height to Top of Blade-Lift Cylinders
3.04 m
Tandem Axle Spacing
1.52 m
Overall Length With Scarifier
9.8 m
Overall Length With Push Block and Ripper
10.1 m
Overall Length With Scarifier and Ripper
10.1 m
Mainframe Width (minimum)
0.305 m
Mainframe Height (minimum)
0.305 m
Circle Side Shift (right)
660 mm
Circle Side Shift (left)
510 mm
Height (measured along arc, including cutting edge)
610 mm
Moldboard Thickness
22 mm
Cutting Edge - Thickness
16 mm
Cutting Edge - Width
152 mm
Scarifiers - Type
V-Type, 5 or 11 Tooth
Width of Cut
1.205 m
Maximum Depth
0.467 m
Shank - Spacing
533 mm
Lift - Above Ground (top of tube)
480 mm
Rear Ripper/Scarifier - Number of Shanks/Teeth
5
Rear Ripper/Scarifier - Maximum Depth
428 mm
Force - Penetration
9,199 kg
Force - Pry-Out
11,641 kg
Ground Clearance (front axle)
339 mm
Operating Weight - Front
6,839 kg
Operating Weight - Rear
15,206 kg
Circle Diameter
1,530 mm
Caterpillar 12M Motor Graders Listings
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Caterpillar 12M Motor Grader
18400 kg
18400 kg
8754 mm × 2511 mm × 3308 mm
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Most popular
What is the average price of a Caterpillar 12M?
No confirmed market price is supplied for the Caterpillar 12M. Check current listings and compare machine condition, location, and configuration.
What are the key advantages of the Caterpillar 12M?
Listed capabilities include 136.5 kW (183 hp) net power, a 3.7 m (12.14 ft) moldboard, 8 forward and 6 reverse gears, and a 46.6 km/h (29 mph) maximum high travel speed. Its hydraulic system has a 210 L/min (55.5 gpm) maximum pump flow.
What type of engine does the 12M use?
The 12M uses a Cat C7 ACERT engine with 6 cylinders. The supplied specification lists U.S. EPA Tier 3 / EU IIIA emissions compliance.
How much horsepower does the 12M have?
The Caterpillar 12M has 136.5 kW (183 hp) of engine power. Net Power (ISO 9249) is also listed as 136.5 kW (183 hp).
What fuel does the Caterpillar 12M use?
The supplied specifications do not confirm the fuel type for the Caterpillar 12M. They list a fuel tank capacity of 416 L (109.9 US gal).
What jobs is this Motor Graders best suited for?
The supplied data does not specify intended jobs for the Caterpillar 12M. Its listed equipment includes a 3.7 m (12.14 ft) moldboard, blade side shift, scarifier options, and rear ripper/scarifier capability; assess these features against the required grading work and site conditions.
What is the expected lifespan of the 12M?
The supplied data does not provide an expected lifespan for the Caterpillar 12M. For a used machine, service history, operating condition, fluid condition, wear components, and hydraulic performance are more useful indicators of remaining service life.
What should a buyer check when purchasing a used Motor Graders?
Inspect service records, engine starting and operation, transmission shifting, hydraulics, steering and articulation, moldboard and cutting-edge wear, tire condition, frame condition, and leaks. Test all blade, scarifier, and ripper functions if equipped, and confirm the machine configuration matches the listing.
