CATERPILLAR 143H MOTOR GRADERS

Technical Description

The Caterpillar 143H is a versatile motor grader engineered for road construction and maintenance applications. Powered by a six-cylinder turbocharged Caterpillar 3176C diesel engine, this machine delivers 205 horsepower with variable displacement ranging from 165 hp in lower gears to full power in gears 7-8. The grader features a 12-foot moldboard with exceptional cutting capabilities, including a maximum depth of cut of 28.1 inches and blade pull reaching 43,977 pounds at maximum weight. Its 8-forward, 6-reverse direct-drive powershift transmission enables speeds up to 27.4 mph forward and 21.6 mph reverse, providing operational flexibility across diverse terrains. The machine measures 28.6 feet in overall length with an 8.4-foot width over tires and weighs approximately 33,670 pounds in standard operating configuration, though maximum operating weight reaches 48,863 pounds. The front axle offers 32 degrees of total oscillation with 18 degrees of wheel lean for superior traction on uneven surfaces. Advanced hydraulic steering with an axial piston pump delivering 54.4 gallons per minute at 3,500 psi relief pressure enables precise blade control and articulation up to 20 degrees. With a 24.6-foot turning radius and 2-foot front ground clearance, the 143H excels in confined spaces while maintaining excellent maneuverability and grading precision for highways, parking lots, and construction sites.