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Komatsu D21A-6 Crawler Dozer

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.


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General Specifications

Dimensions

Ground Clearance1 ft (0 m)
Height - Top of Cab8 ft (2 m)
Length of Track on Ground6 ft (2 m)
Length w/ Blade11 ft (3 m)
Length w/o Blade8 ft (3 m)
Width Over Tracks5 ft (2 m)

Engine

Displacement164 cu in (2,691 cu cm)
Engine Model4D95S
Gross Power40 hp (30 kw)
Number of Cylinders4
Power Measured @2450 rpm

Operating Specifications

Operating Weight7,937 lbs (3,600 kg)

Standard Blade

Height23 in (59 cm)
Width7 ft (2 m)

Transmission

Number of Forward Gears2
Number of Reverse Gears2
Transmission TypeHS

Undercarriage

Number of Shoes per Side37
Number of Track Rollers per Side5
Standard Shoe Size12 in (30 cm)
Track Gauge4 ft (1 m)
Track Pitch5 in (14 cm)