Overview
The Komatsu GD621R-1 is a motor grader listed in the Heavy Equipment Hub equipment database with structured specifications for comparison, research, and machine selection. Key specification points include fuel capacity of 75.3 gal. This model can be reviewed for equipment comparison, jobsite planning, fleet research, and specification-based machine selection. Use the full specifications table to compare the Komatsu GD621R-1 against similar motor grader models by power, weight, capacity, dimensions, speed, and other technical values.
Key Specifications
Std Operation Weight - Total
27,998.80
lb
Max Power
155.60
hp
Moldboard Width
12.20
ft
Overall Length
27.50
ft
Full Specifications
23 specs
Dimensions
Blade Base
8.54 in / 217 mm
Height To Top Of Isomount Cab
11.44 ft / 3.49 m
Overall Length
27.50 ft / 8.38 m
Rear Ground Clearance
1.17 ft / 0.36 m
Tandem Axle Wheelbase
5.04 ft / 1.54 m
Wheelbase
19.69 ft / 6.00 m
Width Over Tires
7.86 ft / 2.40 m
Engine
Displacement
396 cu in / 6.5 L
Engine Make
2238
Engine Model
S6D105
Fuel Capacity
75.30 gal / 285.0 L
Ground Clearance
1.20 ft / 0.37 m
Max Power
156 hp / 116.0 kW
Max Speed - Forward
27.80 mph / 44.7 km/h
Max Speed - Reverse
33.90 mph / 54.6 km/h
Moldboard Height
25.40 in / 645 mm
Moldboard Width
12.20 ft / 3.72 m
Net Power Gear 5-6
156 hp / 116.0 kW
Number Of Gears - Forward
6
Number of Cylinders
6
Power Measured @
2,500 rpm
Std Operation Weight - Total
27,999 lb / 12,700 kg
Turning Radius
34.20 ft / 10.42 m
Related Machines
Frequently Asked Questions
How does the Komatsu GD621R-1 compare to similar Motor Grader models? +
You can compare the Komatsu GD621R-1 side by side with any other model using the Heavy Equipment Hub compare tool. Key comparison points include engine power, operating weight, digging depth, hydraulic flow, and overall dimensions.