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

FeatureKomatsu D21PL-7EDozerKomatsu D21AG-7Dozer
TypeCrawler DozerCrawler Dozer
Horsepower29.8 kW29.8 kW
Operating Weight4110.0 kg3640.0 kg
Engine ManufacturerKomatsuKomatsu
Engine Model4 D94E4 D95S
Gross Power29.8 kW29.8 kW
Displacement2776.0 cc2690.8 cc
Power Measured RPM2450 RPM2450 RPM
Transmission TypeHydrostaticHydrostatic
Number of Forward Gears22
Number of Reverse Gears22
Cab Height249.9 cm249.9 cm
Width Over Track219.5 cm161.5 cm
Length Overall347.5 cm341.4 cm
Length without Blade265.2 cm256.0 cm
Length of Track on Ground182.9 cm170.7 cm
Track Gauge149.4 cm131.1 cm
Ground Clearance36.6 cm30.5 cm
No of Track Rollers Per Side65
Shoe Size70.1 cm30.2 cm
Weight (Operating)4110.0 kg3640.0 kg
Track Pitch13.7 cm14.7 cm
Number of Cylinders—4
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