Construction Equipment Guide
470 Maryland Drive
Fort Washington, PA 19034
800-523-2200
The Komatsu GD405A-1 Motor Grader is a high-performance machine designed for precision grading and leveling tasks. With a powerful 110 hp engine and a transmission type hydroshift, this motor grader offers exceptional control and efficiency on the job. Its compact dimensions and impressive operating specifications make it a versatile and reliable choice for construction and road maintenance projects.
| Max Lift Above Ground | 14.20 in (36.07 cm) |
| Max Reach Outside Tires - Left | 54.00 in (137.16 cm) |
| Max Reach Outside Tires - Right | 56.00 in (142.24 cm) |
| Blade Base | 6.90 ft (2.10 m) |
| Front Ground Clearance | 1.50 ft (0.46 m) |
| Height to Top of Isomount Cab | 10.90 ft (3.32 m) |
| Overall Length | 23.10 ft (7.04 m) |
| Rear Ground Clearance | 1.00 ft (0.30 m) |
| Tandem Axle Wheelbase | 4.30 ft (1.31 m) |
| Wheelbase | 16.10 ft (4.91 m) |
| Width Over Tires | 7.20 ft (2.19 m) |
| Displacement | 396.00 cu in (6,489.29 cu cm) |
| Engine Model | 6D105 |
| Max Power | 110.00 hp (82.03 kw) |
| Net Power Gear 5-6 | 110.00 hp (82.03 kw) |
| Net Torque Gears 5-6 | 282.00 lbs ft (382.34 nm) |
| Ground Clearance | 1.50 ft (0.46 m) |
| Oscillation - Total | 26 degrees |
| Wheel Lean | 22 degrees |
| Max Depth of Cut | 17.40 in (44.20 cm) |
| Moldboard Height | 24.70 in (62.74 cm) |
| Moldboard Thickness | 0.80 in (2.03 cm) |
| Moldboard Width | 10.20 ft (3.11 m) |
| Std Operation Weight - Front Axle | 5,621.80 lbs (2,550.01 kg) |
| Std Operation Weight - Rear Axle | 13,955.30 lbs (6,330.03 kg) |
| Std Operation Weight - Total | 19,577.10 lbs (8,880.03 kg) |
| Tire Size | front 9.00-20-10PR rear 11.00-20-10PR |
| Articulation Angle | 27 degrees |
| Turning Radius | 18.40 ft (5.61 m) |
| Max Speed - Forward | 26.10 mph (42.00 kph) |
| Max Speed - Reverse | 28.00 mph (45.06 kph) |
| Number of Gears - Forward | 6 |
| Number of Gears - Reverse | 6 |
| Transmission Type | hydroshift |