Construction Equipment Guide
470 Maryland Drive
Fort Washington, PA 19034
800-523-2200
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.
| Blade Tip Angle - Front | 40 degrees |
| Blade Tip Angle - Rear | 5 degrees |
| Diameter | 60.20 in (152.91 cm) |
| Max Lift Above Ground | 18.90 in (48.01 cm) |
| Max Reach Outside Tires - Left | 74.60 in (189.48 cm) |
| Max Reach Outside Tires - Right | 77.90 in (197.87 cm) |
| Shift Left | 27.40 in (69.60 cm) |
| Shift Right | 28.70 in (72.90 cm) |
| Blade Base | 8.40 ft (2.56 m) |
| Front Ground Clearance | 2.00 ft (0.61 m) |
| Height to Top of Isomount Cab | 10.30 ft (3.14 m) |
| Overall Length | 28.60 ft (8.72 m) |
| Rear Ground Clearance | 1.20 ft (0.37 m) |
| Tandem Axle Wheelbase | 5.00 ft (1.52 m) |
| Wheelbase | 20.30 ft (6.19 m) |
| Width Over Tires | 8.40 ft (2.56 m) |
| Displacement | 629.00 cu in (10,307.49 cu cm) |
| Engine Model | 3176C DITA ATAAC VHP |
| Max Power | 205.00 hp (152.87 kw) |
| Net Power Gear 1-2 | 165.00 hp (123.04 kw) |
| Net Power Gear 4-6 | 185.00 hp (137.96 kw) |
| Net Power Gear 5-6 | 185.00 hp (137.96 kw) |
| Net Power Gears 7-8 | 205.00 hp (152.87 kw) |
| Ground Clearance | 2.00 ft (0.61 m) |
| Oscillation - Total | 32 degrees |
| Wheel Lean | 18 degrees |
| Pump Flow | 54.40 gpm (205.90 lpm) |
| Pump Type | axial piston |
| Relief Valve Pressure | 3500 psi |
| Blade Down Pressure | 30,126.20 lbs (13,665.03 kg) |
| Blade Pull at Max Weight | 43,977.00 lbs (19,947.66 kg) |
| Max Depth of Cut | 28.10 in (71.37 cm) |
| Moldboard Height | 24.00 in (60.96 cm) |
| Moldboard Thickness | 0.90 in (2.29 cm) |
| Moldboard Width | 12.00 ft (3.66 m) |
| Side Shift Left | 20.60 in (52.32 cm) |
| Side Shift Right | 26.00 in (66.04 cm) |
| Circle Gearbox Fluid Capacity | 1.80 gal (6.81 l) |
| Cooling System Fluid Capacity | 10.00 gal (37.85 l) |
| Fuel Capacity | 105.00 gal (397.43 l) |
| Hydraulic System Fluid Capacity | 20.80 gal (78.73 l) |
| Max Operation Weight - Front Axle | 17,443.00 lbs (7,912.02 kg) |
| Max Operation Weight - Rear Axle | 31,420.00 lbs (14,251.89 kg) |
| Max Operation Weight - Total | 48,863.00 lbs (22,163.91 kg) |
| Std Operation Weight - Front Axle | 9,493.00 lbs (4,305.96 kg) |
| Std Operation Weight - Rear Axle | 24,177.00 lbs (10,966.52 kg) |
| Std Operation Weight - Total | 33,670.00 lbs (15,272.47 kg) |
| Tandem Case Fluid Capacity (each) | 16.90 gal (63.97 l) |
| Articulation Angle | 20 degrees |
| Turning Radius | 24.60 ft (7.50 m) |
| Max Speed - Forward | 27.40 mph (44.10 kph) |
| Max Speed - Reverse | 21.60 mph (34.76 kph) |
| Number of Gears - Forward | 8 |
| Number of Gears - Reverse | 6 |
| Transmission Type | direct drive power shift |