Categories ↠ Crawler Dozers ↠ Komatsu D21A-6

Komatsu D21A-6 Crawler Dozer

Category: Crawler Dozers ➔
Manufacturer: Komatsu ➔
Model: D21A-6 ➔

The Komatsu D21A-6 Crawler Dozer is a compact yet powerful machine designed for exceptional performance in various terrains. With a Gross Power of 40 horsepower and an Operating Weight of 7936.7 pounds, this bulldozer offers unmatched efficiency and productivity. Its robust undercarriage features 37 shoes per side and 5 track rollers per side, ensuring stability and durability during operation. Equipped with a standard blade width of 7.2 feet and a transmission type of HS, the D21A-6 guarantees smooth and precise maneuverability for all your earthmoving needs.

See all Komatsu D21A-6s for sale

Dimensions

Ground Clearance	1 ft (0 m)
Height - Top of Cab	8 ft (2 m)
Length of Track on Ground	6 ft (2 m)
Length w/ Blade	11 ft (3 m)
Length w/o Blade	8 ft (3 m)
Width Over Tracks	5 ft (2 m)

Engine

Displacement	164 cu in (2,691 cu cm)
Engine Model	4D95S
Gross Power	40 hp (30 kw)
Number of Cylinders	4
Power Measured @	2450 rpm

Operating Specifications

Operating Weight

7,937 lbs (3,600 kg)

Standard Blade

Height	23 in (59 cm)
Width	7 ft (2 m)

Transmission

Number of Forward Gears	2
Number of Reverse Gears	2
Transmission Type	HS

Undercarriage

Number of Shoes per Side	37
Number of Track Rollers per Side	5
Standard Shoe Size	12 in (30 cm)
Track Gauge	4 ft (1 m)
Track Pitch	5 in (14 cm)

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