KOMATSU GD405A-1 MOTOR GRADERS

The Komatsu GD405A-1 is a heavy-duty motor grader powered by a 6D105 diesel engine delivering 110 horsepower and 282 foot-pounds of torque, with a displacement of 396 cubic inches. This machine features a hydroshift transmission with six forward and reverse gears, enabling maximum speeds of 26.1 mph forward and 28 mph in reverse. The grader operates at a total weight of 19,577 pounds, with front and rear axle loads of 5,622 and 13,955 pounds respectively. Its moldboard measures 10.2 feet in width with a maximum cutting depth of 17.4 inches and thickness of 0.8 inches, providing precise grading capabilities. The machine spans 23.1 feet in overall length with a 16.1-foot wheelbase and 7.2-foot width over tires, designed for optimal maneuverability on job sites. The articulated steering system offers a 27-degree articulation angle and 18.4-foot turning radius, facilitating easy navigation in confined spaces. The moldboard can achieve a maximum lift of 14.2 inches above ground with reach capabilities of 54 inches to the left and 56 inches to the right of the tire centerline. Front and rear ground clearances of 1.5 and 1.0 feet respectively allow operation over uneven terrain, while the isomount cab rises 10.9 feet above ground for operator visibility and comfort. Standard equipment includes 9.00-20-10PR front tires and 11.00-20-10PR rear tires for enhanced traction and durability.