Overview
The Caterpillar 12G is a motor grader listed in the Heavy Equipment Hub equipment database with structured specifications for comparison, research, and machine selection. Key specification points include fuel capacity of 74.8 gal and hydraulic capacity of 20.1 gal. This model can be reviewed for equipment comparison, jobsite planning, fleet research, and specification-based machine selection. Use the full specifications table to compare the Caterpillar 12G against similar motor grader models by power, weight, capacity, dimensions, speed, and other technical values.
Key Specifications
Std Operation Weight - Total
27,998.80
lb
Max Power
135
hp
Moldboard Width
12
ft
Overall Length
27.27
ft
Full Specifications
50 specs
Dimensions
Blade Base
8.44 in / 214 mm
Height To Top Of Isomount Cab
10.93 ft / 3.33 m
Overall Length
27.27 ft / 8.31 m
Tandem Axle Wheelbase
4.99 ft / 1.52 m
Wheelbase
19.43 ft / 5.92 m
Width Over Tires
7.91 ft / 2.41 m
Engine
Alternator Supplied Amperage
19 A
Articulation Angle
50 deg
Cooling System Fluid Capacity
12.50 gal / 47.3 L
Displacement
641 cu in / 10.5 L
Engine Make
2236
Fuel Capacity
74.80 gal / 283.1 L
Ground Clearance
2.10 ft / 0.64 m
Hydraulic System Fluid Capacity
20.10 gal / 76.1 L
Max Depth Of Cut
17.80 ft / 5.43 m
Max Operation Weight - Front Axle
9,987 lb / 4,530 kg
Max Operation Weight - Rear Axle
21,605 lb / 9,800 kg
Max Operation Weight - Total
31,592 lb / 14,330 kg
Max Power
135 hp / 100.7 kW
Max Speed - Forward
25.50 mph / 41.0 km/h
Max Speed - Reverse
25.50 mph / 41.0 km/h
Moldboard Height
24.10 in / 612 mm
Moldboard Thickness
0.90 in / 23 mm
Moldboard Width
12 ft / 3.66 m
Net Power Gear 5-6
135 hp / 100.7 kW
Number Of Gears - Forward
6
Number Of Gears - Reverse
6
Number of Cylinders
6
Oil System Fluid Capacity
7.70 gal / 29.1 L
Operating Voltage
24 V
Oscillation - Total
32 deg
Power Measured @
2,200 rpm
Pump Flow
51 gal/min / 193.1 L/min
Relief Valve Pressure
2,150 psi / 148.2 bar
Side Shift Left
26.40 in / 671 mm
Side Shift Right
20.50 in / 521 mm
Std Operation Weight - Front Axle
7,871 lb / 3,570 kg
Std Operation Weight - Rear Axle
20,128 lb / 9,130 kg
Std Operation Weight - Total
27,999 lb / 12,700 kg
Tandem Case Fluid Capacity (Each)
17 gal / 64.4 L
Transmission Fluid Capacity
23 gal / 87.1 L
Turning Radius
24 ft / 7.32 m
Wheel Lean
18 deg
Hydraulics
Blade Tip Angle - Front
90 deg
Blade Tip Angle - Rear
90 deg
Diameter
60.30 in / 1,532 mm
Max Lift Above Ground
17.30 in / 439 mm
Max Reach Outside Tires - Left
72.10 ft / 21.98 m
Max Reach Outside Tires - Right
73.70 ft / 22.46 m
Rotation
360 deg
Related Machines
Frequently Asked Questions
How does the Caterpillar 12G compare to similar Motor Grader models? +
You can compare the Caterpillar 12G side by side with any other model using the Heavy Equipment Hub compare tool. Key comparison points include engine power, operating weight, digging depth, hydraulic flow, and overall dimensions.