Komatsu D21A-8 Crawler Dozer Specs

Category: Crawler Dozers ➔
Manufacturer: Komatsu ➔
Model: D21A-8 ➔

The Komatsu D21A-8 Crawler Dozer is a compact and powerful machine designed for efficiency and productivity in a variety of job sites. With a gross power of 43.1 hp and an operating weight of 8690 lbs, this dozer offers excellent maneuverability and performance. Its standard blade dimensions, transmission capabilities, and undercarriage specifications make it a versatile and reliable choice for tackling tough earthmoving tasks.

Dimensions

Komatsu D21A-8 Crawler Dozer Dimensions specifications
Height - Top of Cab	8.10 ft (2.47 m)
Length w/ Blade	11.10 ft (3.38 m)
Width Over Tracks	4.40 ft (1.34 m)

Engine

Komatsu D21A-8 Crawler Dozer Engine specifications
Aspiration	naturally aspirated
Displacement	186.00 cu in (3,048.00 cu cm)
Engine Model	4D94LE-2
Gross Power	43.10 hp (32.14 kw)
Make	Komatsu
Net Power	40.00 hp (29.83 kw)
Number of Cylinders	4

Operating Specifications

Komatsu D21A-8 Crawler Dozer Operating Specifications specifications
Cooling System Fluid Capacity	2.60 gal (9.84 l)
Engine Oil Capacity	1.70 gal (6.43 l)
Final Drives Fluid Capacity	1.60 gal (6.06 l)
Fuel Capacity	15.90 gal (60.18 l)
Hydraulic Fluid Capacity	5.50 gal (20.82 l)
Operating Weight	8,690.00 lbs (3,941.72 kg)

Standard Blade

Komatsu D21A-8 Crawler Dozer Standard Blade specifications
Blade Angle (both directions)	25 degrees
Height	2.70 in (6.86 cm)
Width	7.10 ft (2.16 m)

Transmission

Komatsu D21A-8 Crawler Dozer Transmission specifications
Max Speed - Forward	2.70 mph (4.35 kph)
Max Speed - Reverse	3.50 mph (5.63 kph)
Number of Forward Gears	2
Number of Reverse Gears	2
Transmission Type	Komatsu HYDROSHIFT transmission

Undercarriage

Komatsu D21A-8 Crawler Dozer Undercarriage specifications
Ground Contact Area	1,570.00 cu in (25,727.75 cu cm)
Ground Pressure	4.8 psi
Number of Shoes per Side	37
Number of Track Rollers per Side	5
Standard Shoe Size	11.80 in (29.97 cm)

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