Komatsu D31EX-22 Crawler Dozer Specs

Category: Crawler Dozers ➔
Manufacturer: Komatsu ➔
Model: D31EX-22 ➔

The Komatsu D31EX-22 Crawler Dozer is a powerful and efficient machine designed for various earthmoving and construction tasks. With a turbocharged engine and hydrostatic transmission, this dozer delivers a net power of 78 hp, making it ideal for handling tough terrain with ease. Its durable undercarriage and standard shoe size ensure stability and traction, while the ripper attachment adds versatility for a range of applications. The dozer's compact dimensions, operating weight of 18,056 lbs, and maximum speeds of 5.3 mph in both forward and reverse gears make it a reliable and productive choice for any job site.

Dimensions

Komatsu D31EX-22 Crawler Dozer Dimensions specifications
Ground Clearance	1.10 ft (0.34 m)
Height - Top of Cab	9.20 ft (2.80 m)
Track Gauge	5.00 ft (1.52 m)

Engine

Komatsu D31EX-22 Crawler Dozer Engine specifications
Aspiration	Turbocharged air-to-air aftercooled
Bore	3.80 in (9.65 cm)
Displacement	199.00 cu in (3,261.03 cu cm)
Engine Model	SAA4D95LE-5
Gross Power	80.00 hp (59.66 kw)
Make	Komatsu
Net Power	78.00 hp (58.17 kw)
Number of Cylinders	4
Power Measured @	2200 rpm
Stroke	4.60 in (11.68 cm)

Operating Specifications

Komatsu D31EX-22 Crawler Dozer Operating Specifications specifications
Operating Weight	18,056.00 lbs (8,190.07 kg)

Transmission

Komatsu D31EX-22 Crawler Dozer Transmission specifications
Max Speed - Forward	5.30 mph (8.53 kph)
Max Speed - Reverse	5.30 mph (8.53 kph)
Number of Forward Gears	3
Number of Reverse Gears	3
Transmission Type	dual-path hydrostatic

Undercarriage

Komatsu D31EX-22 Crawler Dozer Undercarriage specifications
Ground Contact Area	2,713.00 cu in (44,458.20 cu cm)
Ground Pressure	6.7 psi
Standard Shoe Size	15.80 in (40.13 cm)
Track Gauge	5.00 ft (1.52 m)

Weights

Komatsu D31EX-22 Crawler Dozer Weights specifications
Ripper weight	1,267.70 lbs (575.02 kg)

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