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Komatsu D21A-7 Crawler Dozers

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SPECS / CRAWLER DOZERS

Komatsu D21A-7 Specs

Komatsu D21A-7 crawler dozer specifications: type Crawler Dozer, horsepower 29.8 kW, operating weight 3600.0 kg, engine manufacturer Komatsu.

Manufacturer specifications

SpecificationMetricImperial
TypeCrawler Dozer
Horsepower29.8 kW40 HP
Operating Weight3600.0 kg7936.7 lbs
Engine ManufacturerKomatsu
Engine Model4 D95S
Gross Power29.8 kW40 HP
Number of Cylinders4
Displacement2690.8 cc164.2 cu in.
Power Measured RPM2450 RPM
Transmission TypeHydrostatic
Number of Forward Gears2
Number of Reverse Gears2
Cab Height249.9 cm98.4 in.
Width Over Track161.5 cm63.6 in.
Length Overall341.4 cm134.4 in.
Length without Blade256.0 cm100.8 in.
Length of Track on Ground170.7 cm67.2 in.
Track Gauge131.1 cm51.6 in.
Ground Clearance30.5 cm12.0 in.
No of Track Rollers Per Side5
Shoe Size30.2 cm11.9 in.
Weight (Operating)3600.0 kg7936.7 lbs
Track Pitch13.7 cm5.4 in.

Source: heavyequipments.net archive (imported 2026-10). Values may vary by variant and production year; seller claims are shown separately on the listing page.

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