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Caterpillar 143H Motor Grader

The Caterpillar 143H is a motor grader designed for road construction, maintenance, and earthmoving applications. Built by Caterpillar, the 143H features a heavy-duty frame, articulated steering, and a moldboard for precise grading and surface shaping. It is commonly used for highway work, site preparation, ditching, and snow removal. The machine is known for its balance of blade control, traction, and operator visibility. As part of Caterpillar's motor grader lineup, the 143H is suited to demanding grading tasks in construction, mining support, and municipal operations. Its configuration supports efficient material control and consistent finish grading performance.


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Circle

Blade Tip Angle - Front40 degrees
Blade Tip Angle - Rear5 degrees
Diameter60.20 in (152.91 cm)
Max Lift Above Ground18.90 in (48.01 cm)
Max Reach Outside Tires - Left74.60 in (189.48 cm)
Max Reach Outside Tires - Right77.90 in (197.87 cm)
Shift Left27.40 in (69.60 cm)
Shift Right28.70 in (72.90 cm)

Dimensions

Blade Base8.40 ft (2.56 m)
Front Ground Clearance2.00 ft (0.61 m)
Height to Top of Isomount Cab10.30 ft (3.14 m)
Overall Length28.60 ft (8.72 m)
Rear Ground Clearance1.20 ft (0.37 m)
Tandem Axle Wheelbase5.00 ft (1.52 m)
Wheelbase20.30 ft (6.19 m)
Width Over Tires8.40 ft (2.56 m)

Engine

Displacement629.00 cu in (10,307.49 cu cm)
Engine Model3176C DITA ATAAC VHP
Max Power205.00 hp (152.87 kw)
Net Power Gear 1-2165.00 hp (123.04 kw)
Net Power Gear 4-6185.00 hp (137.96 kw)
Net Power Gear 5-6185.00 hp (137.96 kw)
Net Power Gears 7-8205.00 hp (152.87 kw)

Front Axle

Ground Clearance2.00 ft (0.61 m)
Oscillation - Total32 degrees
Wheel Lean18 degrees

Hydraulic System

Pump Flow54.40 gpm (205.90 lpm)
Pump Typeaxial piston
Relief Valve Pressure3500 psi

Moldboard

Blade Down Pressure30,126.20 lbs (13,665.03 kg)
Blade Pull at Max Weight43,977.00 lbs (19,947.66 kg)
Max Depth of Cut28.10 in (71.37 cm)
Moldboard Height24.00 in (60.96 cm)
Moldboard Thickness0.90 in (2.29 cm)
Moldboard Width12.00 ft (3.66 m)
Side Shift Left20.60 in (52.32 cm)
Side Shift Right26.00 in (66.04 cm)

Operating Specifications

Circle Gearbox Fluid Capacity1.80 gal (6.81 l)
Cooling System Fluid Capacity10.00 gal (37.85 l)
Fuel Capacity105.00 gal (397.43 l)
Hydraulic System Fluid Capacity20.80 gal (78.73 l)
Max Operation Weight - Front Axle17,443.00 lbs (7,912.02 kg)
Max Operation Weight - Rear Axle31,420.00 lbs (14,251.89 kg)
Max Operation Weight - Total48,863.00 lbs (22,163.91 kg)
Std Operation Weight - Front Axle9,493.00 lbs (4,305.96 kg)
Std Operation Weight - Rear Axle24,177.00 lbs (10,966.52 kg)
Std Operation Weight - Total33,670.00 lbs (15,272.47 kg)
Tandem Case Fluid Capacity (each)16.90 gal (63.97 l)

Steering System

Articulation Angle20 degrees
Turning Radius24.60 ft (7.50 m)

Transmission

Max Speed - Forward27.40 mph (44.10 kph)
Max Speed - Reverse21.60 mph (34.76 kph)
Number of Gears - Forward8
Number of Gears - Reverse6
Transmission Typedirect drive power shift

  • Caterpillar 143Hs currently for sale
  • A Caterpillar 143H From MacAllister Machinery – South for $70,000.00 USD



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