Komatsu GD655-7 Motor Graders
Komatsu GD655-7
5+
sold in last yearGeneral overview
Komatsu GD655-7 is a motor grader designed for construction work that requires controlled grading, shaping, and leveling. It has an operating weight of 19,480 kg (42,950 lb) and is powered by a 160 kW (218 hp) engine, giving it the mass and output needed for finish grading and earthmoving tasks. The machine uses a 6.7 L (408 cu in) Komatsu SAA6D107E-3 engine and meets EPA Tier 4 Final emission standards.
A Full power shift transmission with integral free wheeling stator torque converter and lock-up supports 8 gears forward and 4 gears reverse, with a maximum travel speed of 48.5 km/h (30.1 mph). The grader also uses a 4.27 m (14 ft) moldboard, a 6.49 m (21 ft 4 in) wheelbase, and a 7.4 m (24 ft 3 in) turning radius, which help define its size and operating range on grade control work.
Year
2020, 2021, 2022, 2023, 2024
Country of manufacturing
Japan
General specifications
Dimensions
Height
Length
Weight
Width
3,200 mm
~126 in
10,875 mm
~428.1 in
19,480 kg
~42,946.1 lb
4,270 mm
~168.1 in
Engine Power
218 hp
Operating Weight
19,480 kg
Moldboard Width
4.27 m
Additional specifications
Emission standard level
EPA Tier 4 Final
Displacement
408 cu(in)
Transmission type
Full power shift transmission with integral free wheeling stator torque converter and lock-up.
Fuel tank
390 L
Cooling system
30 L
Wheelbase
6.49 m
Number of Cylinders
6
Battery Voltage
24 V
Engine Model
SAA6D,107E-3
Maximum Travel Speed - High
48.5 km/h
Engine Oil
Net Power (ISO 9249)
218 hp
Net Peak Torque
941 Nm
Alternator Rating
140 amps
Hydraulic System
69 L
Cab Height
3.2 m
Lights
â– Dome light cab â– Headlights,(2) halogen type, front bar mounted â– Horn, electric â– Indicator lights: â– Lights: backup, stop, directional, tail
Main Pump Type
Load-sensing closed center hydraulics with variable displacement piston pump. Electronic proportional controlled valves with preselected maximum flow setting to each function. Double acting anti-drift check valves on blade lift, tip, circle shift, articulation, and leaning wheels.
Gears Forward
8
Gears Reverse
4
Front Axle Oscillation (total)
32 deg
Front Axle Wheel Lean Angle (each direction)
16 deg
Steering (Turning Radius)
7.4 m
Steering (Articulation)
25 deg
Maximum Pump Flow
203 L/min
Maximum System Pressure
20,600 kPa
Pump Displacement
Blade Range - Lift Above Ground
480 mm
Blade Range - Blade Side Shift (right or left)
625 mm
Pitch at Ground Line - Forward
40 deg
Pitch at Ground Line - Back
5 deg
Shoulder Reach Outside Wheels (frame straight, right or left)
625 mm
Bank Cut Angle (right or left)
90 deg
Blade Pull At Maximum Operating Weight
10,100 kg
Blade Base
3.2 m
Mainframe Width (minimum)
0.3 m
Mainframe Height (minimum)
0.3 m
Circle - Consruction
Single piece rolled ring forging. Six circle support shoes with replaceable wear surface. Circle teeth hardened on front 180° of circle.
Circle Rotation
360 deg
Moldboard Type
Hydraulic power shift fabricated from high tensile steel. Includes replaceable metal wear inserts, cutting edge and end bits. Cutting edge and end bits are hardened.
Base Length
4.27 m
Height (measured along arc, including cutting edge)
660 mm
Moldboard Thickness
25 mm
Cutting Edge - Thickness
16 mm
Cutting Edge - Width
152 mm
Width of Cut
1.43 m
Maximum Depth
190 mm
Rear Ripper/Scarifier - Number of Shanks/Teeth
5/9
Rear Ripper/Scarifier - Maximum Depth
425 mm
Force - Penetration
9,650 kg
Force - Pry-Out
16,600 kg
Wheel Tread on Ground
2.1 m
Ground Clearance (front axle)
620 mm
Circle Diameter
1,530 mm
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Komatsu GD655-7 Motor Grader
19480 kg
19480 kg
10875 mm × 4270 mm × 3200 mm
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Most popular
What is the average price of a Komatsu GD655-7?
No confirmed market price is supplied. Check current listings and compare the machine’s condition, location, configuration, and service history.
What are the key advantages of the Komatsu GD655-7?
Specified features include 162.6 kW (218 hp) net power, a 4.27 m (14.01 ft) moldboard, 8 forward and 4 reverse gears, 360° circle rotation, and a 390 L (103 US gal) fuel tank.
What type of engine does the GD655-7 use?
The GD655-7 uses a SAA6D107E-3 engine with 6 cylinders and 408 cu in displacement. Its listed emission standard is EPA Tier 4 Final.
How much horsepower does the GD655-7 have?
The GD655-7 has 162.6 kW (218 hp) of engine power. Net Power (ISO 9249) is also listed as 162.6 kW (218 hp).
What fuel does the Komatsu GD655-7 use?
The supplied specifications do not confirm the fuel type for the Komatsu GD655-7.
What jobs is this Motor Graders best suited for?
As a motor grader, it is suited to grading and shaping work. The supplied specifications include a 4.27 m (14.01 ft) moldboard, 190 mm (7.5 in) maximum depth, and 625 mm (24.6 in) blade side shift.
What is the expected lifespan of the GD655-7?
The supplied data does not confirm an expected lifespan. Assess service records, operating hours, maintenance condition, and wear in the blade, circle, drivetrain, hydraulics, and ripper or scarifier components.
What should a buyer check when purchasing a used Motor Graders?
Check service records, engine operation, transmission shifting, hydraulic performance, blade and cutting-edge wear, circle condition, steering and articulation, tires, brakes, lights, and the rear ripper or scarifier. Inspect for leaks, damage, and excessive wear.
