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Komatsu D21P-8 Crawler Dozer

The Komatsu D21P-8 Crawler Dozer is a powerful and versatile machine designed for a variety of earthmoving and construction applications. With a compact size and impressive operating weight of 9350 lbs, this dozer can handle a range of tasks with ease. Equipped with a Komatsu 4D94LE-2 engine producing 40 hp, the D21P-8 delivers reliable performance and efficiency on the job site. Its standard blade features a 25 cu yd capacity and 8.5 ft width, making it ideal for pushing and leveling materials. Operating at maximum speeds of 2.7 mph forward and 3.5 mph in reverse, this crawler dozer offers excellent maneuverability and control.


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General Specifications

Dimensions

Height - Top of Cab8 ft (2 m)
Length w/ Blade11 ft (3 m)
Width Over Tracks5 ft (2 m)

Engine

Aspirationnaturally aspirated
Displacement186 cu in (3,048 cu cm)
Engine Model4D94LE-2
Gross Power43 hp (32 kw)
MakeKomatsu
Net Power40 hp (30 kw)
Number of Cylinders4

Operating Specifications

Cooling System Fluid Capacity3 gal (10 l)
Engine Oil Capacity2 gal (6 l)
Final Drives Fluid Capacity2 gal (8 l)
Fuel Capacity16 gal (60 l)
Hydraulic Fluid Capacity6 gal (21 l)
Operating Weight9,350 lbs (4,241 kg)

Standard Blade

Blade Angle (both directions)25 degrees
Capacity25 cu yd (19 cu m)
Height3 in (7 cm)
Width9 ft (3 m)

Transmission

Max Speed - Forward3 mph (4 kph)
Max Speed - Reverse4 mph (6 kph)
Number of Forward Gears2
Number of Reverse Gears2
Transmission TypeKomatsu HYDROSHIFT transmission

Undercarriage

Ground Contact Area2,664 cu in (43,655 cu cm)
Ground Pressure3 psi
Number of Shoes per Side37
Number of Track Rollers per Side5
Standard Shoe Size20 in (51 cm)