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Manufacturer-sourced values side by side. No performance equivalence or ranking is applied across different machine classes.

FeatureKomatsu D21A-6DozerHitachi DX45M-C LANDYDozer
TypeCrawler DozerCrawler Dozer
Horsepower29.8 kW29.8 kW
Operating Weight3600.0 kg4330.0 kg
Engine ManufacturerKomatsuIsuzu
Engine Model4 D95SA-4JG2
Gross Power29.8 kW—
Number of Cylinders4—
Displacement2690.8 cc3059.5 cc
Power Measured RPM2450 RPM—
Transmission TypeHydrostaticDual Power Shift
Number of Forward Gears23
Number of Reverse Gears23
Cab Height249.9 cm249.9 cm
Width Over Track161.5 cm256.0 cm
Length Overall341.4 cm350.5 cm
Length without Blade256.0 cm—
Length of Track on Ground170.7 cm170.7 cm
Track Gauge131.1 cm149.4 cm
Ground Clearance30.5 cm33.5 cm
No of Shoes Per Side37—
No of Track Rollers Per Side5—
Shoe Size30.2 cm—
Weight (Operating)3600.0 kg4330.0 kg
Track Pitch13.7 cm—
Net Power—29.8 kW
Sourceheavyequipments.net archive (imported 2026-10)heavyequipments.net archive (imported 2026-10)
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Side-by-side specification comparisons generated from the manufacturer-sourced model files. · 7,051