- Overall Length: 28.12 ft / 8571 mm
- Width Over Tires: 8 ft / 2440 mm
- Wheelbase: 19.97 ft / 6086 mm
- Rear Ground Clearance: 1.13 ft / 341.5 mm
Published dimensions and weight
Caterpillar 12H
The Caterpillar 12H is a motor grader built around the C-9 ETA VHP engine (165 hp).
01Published dimensions and weight
Dimensions reference
Measurement reference — not to scale
01Dimensions referenceLength × width × height
02Std Operation Weight - Total31320 lb14200 kg
03Selected published values64
Motor graders are commonly used to shape, level and maintain roads, pads and drainage surfaces. Published rows for Caterpillar 12H include published moldboard width of 12 ft / 3658 mm, published maximum power of 165 hp / 123.1 kw, published operating weight of 31320 lb / 14200 kg. These values describe the published configuration; verify the specific machine's configuration, attachments and records.
- Compare the published “Overall Length” field (28.12 ft / 8571 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Width Over Tires” field (8 ft / 2440 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Wheelbase” field (19.97 ft / 6086 mm) with the specific machine's configuration and records; options and condition can differ.
02Specifications
Published values, clearly grouped.
Published specifications and measurements are organized by section for quick reference.
Dimensions
Overall Length28.12 ft8571 mm
Width Over Tires8 ft2440 mm
Wheelbase19.97 ft6086 mm
Rear Ground Clearance1.13 ft341.5 mm
Tandem Axle Wheelbase4.99 ft1523 mm
Front Ground Clearance1.95 ft594 mm
Blade Base8.44 ft2575 mm
Height To Top Of Isomount Cab10.17 ft3107 mm
Engine
Number Of Cylinders66
Net Power Gear 4-6165 hp123 kw
Engine Make22362236
Engine ModelC-9 ETA VHPC-9 ETA VHP
Net Power Gear 1-2145 hp108 kw
Power Measured @2000 rpm2000 rpm
Net Power Gear 5-6165 hp123 kw
Max Power165 hp123.1 kw
Net Power Gears 7-8165 hp123 kw
Displacement537 cu in8.8 L
Operational
Std Operation Weight - Front Axle8346 lb3784 kg
Std Operation Weight - Rear Axle22974 lb10416 kg
Hydraulic System Fluid Capacity19.5 gal74 L
Std Operation Weight - Total31320 lb14200 kg
Max Operation Weight - Front Axle13744 lb6234 kg
Max Operation Weight - Rear Axle32074 lb14549 kg
Max Operation Weight - Total45818 lb20783 kg
Oil System Fluid Capacity7.2 gal27 L
Fuel Capacity100 gal378 L
Cooling System Fluid Capacity11.6 gal44 L
Rear Diff/Final Drive Fluid Capacity12.2 gal47 L
Circle Gearbox Fluid Capacity1.8 gal7 L
Tandem Case Fluid Capacity (Each)16.9 gal64 L
Tire Size14.00-24 12PR14.00-24 12PR
Operating Voltage24 V24 V
Alternator Supplied Amperage75 amps75 amps
Steering
Articulation Angle50 degrees50 degrees
Turning Radius24.3 ft7.4 m
Transmission
Transmission Typedirect drive power shiftdirect drive power shift
Number Of Gears - Forward88
Number Of Gears - Reverse66
Max Speed - Forward27.4 mph44 km/h
Max Speed - Reverse21.6 mph34.7 km/h
Front Axle
Wheel Lean18 degrees18 degrees
Oscillation - Total32 degrees32 degrees
Ground Clearance2 ft594 mm
Moldboard
Moldboard Width12 ft3658 mm
Moldboard Height24 in610 mm
Moldboard Thickness0.9 in22 mm
Max Depth Of Cut28.9 in735 mm
Side Shift Left20.6 in524 mm
Side Shift Right26 in660 mm
Blade Pull At Max Weight28867 lb13094 kg
Blade Down Pressure23807.8 lb10799 kg
Hydraulic System
Pump Typevariable pistonvariable piston
Pump Flow51.9 gal/min196 L/min
Relief Valve Pressure3500 psi24150 kPa
Circle
Diameter60.2 in1530 mm
Rotation360 degrees360 degrees
Shift Left27.4 in695 mm
Shift Right28.7 in728 mm
Max Reach Outside Tires - Left73.6 in1859 mm
Max Reach Outside Tires - Right71.2 in1809 mm
Max Lift Above Ground18.9 in480 mm
Blade Tip Angle - Front40 degrees40 degrees
Blade Tip Angle - Rear5 degrees5 degrees
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Manufacturer-published specifications.