Komatsu GD705A-4 Motor Grader Specs

Category: Motor Graders ➔
Manufacturer: Komatsu ➔
Model: GD705A-4 ➔

The Komatsu GD705A-4 motor grader is a powerful and versatile machine designed for efficient grading and leveling operations on construction sites. With a maximum power of 199.9 hp and a blade base of 9.6 ft, this motor grader offers excellent performance and control. Its robust engine model, S6D125, and spacious Isomount cab ensure comfort and productivity for operators. Equipped with a 105.7-gallon fuel capacity and operating weight of 38,845.5 lbs, the GD705A-4 delivers reliable performance in various applications.

Dimensions

Komatsu GD705A-4 Motor Grader Dimensions specifications
Blade Base	9.52 ft (2.90 m)
Height To Top Of Isomount Cab	11.68 ft (3.56 m)
Overall Length	30.42 ft (9.27 m)
Rear Ground Clearance	1.35 ft (0.41 m)
Tandem Axle Wheelbase	5.68 ft (1.73 m)
Wheelbase	21.17 ft (6.45 m)
Width Over Tires	9.19 ft (2.80 m)

Engine

Komatsu GD705A-4 Motor Grader Engine specifications
Displacement	674.40 cu in (11,051.46 cu cm)
Engine Make	2238
Engine Model	S6D125
Max Power	199.90 hp (149.07 kw)
Net Power Gears 7-8	199.90 hp (149.07 kw)
Number Of Cylinders	6
Power Measured @	2000 rpm

Front Axle

Komatsu GD705A-4 Motor Grader Front Axle specifications
Ground Clearance	1.40 ft (0.43 m)

Moldboard

Komatsu GD705A-4 Motor Grader Moldboard specifications
Moldboard Height	27.60 in (70.10 cm)
Moldboard Width	14.20 ft (4.33 m)

Operational

Komatsu GD705A-4 Motor Grader Operational specifications
Fuel Capacity	105.70 gal (400.07 l)
Std Operation Weight - Total	38,845.50 lbs (17,620.04 kg)
Tire Size	16.00-24-12PR

Steering

Komatsu GD705A-4 Motor Grader Steering specifications
Articulation Angle	26 degrees
Turning Radius	24.70 ft (7.53 m)

Transmission

Komatsu GD705A-4 Motor Grader Transmission specifications
Max Speed - Forward	26.80 mph (43.13 kph)
Max Speed - Reverse	28.60 mph (46.03 kph)
Number Of Gears - Forward	8

Our Main Office

Construction Equipment Guide
470 Maryland Drive
Fort Washington, PA 19034
800-523-2200

About Us

Construction Equipment Guide covers the nation with its four regional newspapers, offering construction and industry news and information along with new and used construction equipment for sale from dealers in your area. Now we extend those services and information to the internet. Making it as easy as possible to find the news and equipment that you need and want.

Contents Copyrighted 2026, by Construction Equipment Guide, which is a Registered Trademark, registered in the U.S. Patent Office. Registration number 0957323. All rights reserved, nothing may be reprinted or reproduced (including framing) in whole or part without written permission from the publisher. All editorial material, photographs, drawings, letters, and other material will be treated as unconditionally assigned for publication and copyright purposes and are subject to Construction Equipment Guide’s unrestricted right to edit and comment editorially. Contributor articles do not necessarily reflect the policy or opinions of this publication.

Read our privacy policy here.
Mastodon