Komatsu WD900-3 Wheel Dozer Specs

Category: Wheel Dozers ➔
Manufacturer: Komatsu ➔
Model: WD900-3 ➔

Axles

Komatsu WD900-3 Wheel Dozer Axles specifications
Differential Gear	Straight bevel gear
Drive System	Four-wheel drive
Final Reduction Gear	Planetary gear, sinlge reduction, oil bath
Front	Fixed, full-floating
Rear	Center-pin-support, full-floating +-11 Oscillation
Reduction Gear	Spiral bevel gear

Brakes

Komatsu WD900-3 Wheel Dozer Brakes specifications
Emergency Brake	Uses Parking brake
Parking Brake	Dry-disc type, hydraulic released, spring applied on front axle input shaft
Service Brake	4-Wheel systematic break for front/rear wheel, hydraulically actuated for wet disc

Capacities

Komatsu WD900-3 Wheel Dozer Capacities specifications
Axle Each (Front & Rear)	95.10 gal (359.95 l)
Cooling System	79.50 gal (300.91 l)
Engine Oil	34.90 gal (132.10 l)
Fuel Tank - Diesel	377.80 gal (1,429.97 l)
Hydraulic Tank	191.50 gal (724.83 l)
Torque Converter, Transmission And Retarder Cooling	37.00 gal (140.05 l)

Dimensions

Komatsu WD900-3 Wheel Dozer Dimensions specifications
Blade Capacity (Sae Rated)	Semi-U blade-26.0 m3 (34.0 cu.yd); Coal blade-45.0 m3 (58.9 cu.yd)
Blade Width	Semi-U blade-6470 mm (21\'3\"); Coal blade-7400 mm (24\'3\")
Max. Pitch Angle Adjustment	+-8\"
Max. Tilt Adjustment	Semi-U blade-1330 mm (4\'4\"); Coal blade 1710 mm (5\'7\")
Max.Drop Below Ground	Semi-U blade-680 mm (2\'3\"); Coal blade 680 mm (2\'3\")
Max.Lift Above Ground	Semi-U blade-1580 mm(5\"2\"); Coal blade 1560 mm (5\'1\")

Engine

Komatsu WD900-3 Wheel Dozer Engine specifications
Aspiration	Turbo-charged
Bore And Stroke	140mm165mm 5.5\"6.5\"
Displacement	1,861.30 cu in (30,501.31 cu cm)
Engine Make	2238
Engine Model	SA12V140
Engine Type	Water-cooled, 4-cycle
Fuel System	Direct injection
Horsepower (Gross)	637 Kw 853 Hp (SAE J1340) 637 Kw 865 PS (DIN 6270)
Number Of Cylinders	12
Piston Displacement	1,861.00 cu in (30,496.39 cu cm)
Power Measured @	2000 rpm

Hydraulic System

Komatsu WD900-3 Wheel Dozer Hydraulic System specifications
Blade Lift Control	Raise, hold lower and float
Blade Tilt And Pitch Contol	Tilt-left, hold and Tilt-right, pitch for forward and back
Control Valve	Double spool type, pilot control
Hydraulic System Type	Double-acting Piston type
No.Of Cylinders	2
Pump Type	Two Piston-pumps, one for switch pump
Relief Valve Setting	320 kg/cm2 4550 PSI

Steering System

Komatsu WD900-3 Wheel Dozer Steering System specifications
Articulation Angle	40 degees each direction
Minimum Turning Radius At The Centre Of Outside Tire	30.20 ft (9.20 m)
Steering System Type	Articulated type, full-hydraulic power steering

Tires

Komatsu WD900-3 Wheel Dozer Tires specifications
Front & Rear	45/65 R45 XLDD(L4)
Rims	36.00-45

Transmission

Komatsu WD900-3 Wheel Dozer Transmission specifications
Torque Converter	3-elements, 1-Stage, 1-phase
Transmission	Full power-shift, planetary Gear type

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