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Current number of specifications

Caterpillar 12G Motor Grader

Selected Dimensions

A. Overall Length27.3 ft in8310 mm
B. Width Over Tires7.9 ft in2410 mm
C. Height to Top of Cab10.9 ft in3330 mm
D. Wheelbase19.4 ft in5920 mm
G. Tandem Axle Wheelbase5 ft in1520 mm
H. Blade Base8.4 ft in2570 mm


Power Measured @2200 rpm
Net Power Gear 5-6135 hp100.7 kw
Number of Cylinders6
Max Power135 hp100.7 kw
Displacement640.7 cu in10.5 L
Std Operation Weight - Front Axle7870.5 lb3570 kg
Std Operation Weight - Rear Axle20128.2 lb9130 kg
Std Operation Weight - Total27998.7 lb12700 kg
Max Operation Weight - Front Axle9986.9 lb4530 kg
Max Operation Weight - Rear Axle21605.3 lb9800 kg
Max Operation Weight - Total31592.2 lb14330 kg
Fuel Capacity74.8 gal283 L
Oil System Fluid Capacity7.7 gal29 L
Cooling System Fluid Capacity12.4 gal47 L
Hydrauilc System Fluid Capacity20.1 gal76 L
Transmission Fluid Capacity23 gal87 L
Tandem Case Fluid Capacity (each)16.9 gal64 L
Operating Voltage24 V
Alternator Supplied Amperage19 amps
TypeCat-built direct drive power shift
Number of Gears - Forward6
Number of Gears - Reverse6
Max Speed - Forward25.5 mph41 km/h
Max Speed - Reverse25.5 mph41 km/h
Articulation L/R50 degrees
Turning Radius24 ft in7.3 m
Front Axle
Wheel Lean18 degrees
Oscillation - Total32 degrees
Ground Clearance2 ft in610 mm
Hydraulic System
Pump Typeclosed-center, constant-pressure system w/ variable displacement piston
Pump Flow51 gal/min193 L/min
Relief Valve Pressure2150 psi14823.7 kPa
Moldboard Width12 ft in3650 mm
Moldboard Height24 in610 mm
Moldboard Thickness0.87 in22 mm
Max Depth of Cut17.7 in450 mm
Side Shift Left26.4 in670 mm
Side Shift Right20.5 in520 mm
Diameter60.2 in1530 mm
Rotation360 degrees
Max Reach Outside Tires - Left72 in1830 mm
Max Reach Outside Tires - Right73.6 in1870 mm
Max Lift Above Ground17.2 in438 mm
Blade Tip Angle - Front90 degrees
Blade Tip Angle - Rear90 degrees
Height to Top of Cab10.9 ft in3330 mm
Overall Length27.3 ft in8310 mm
Width Over Tires7.9 ft in2410 mm
Wheelbase19.4 ft in5920 mm
Blade Base8.4 ft in2570 mm
Tandem Axle Wheelbase5 ft in1520 mm