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

FeatureKomatsu D21A-7EDozerFurukawa FD40PLDozer
TypeCrawler DozerCrawler Dozer
Horsepower29.8 kW29.8 kW
Operating Weight3680.0 kg4410.0 kg
Engine ManufacturerKomatsuIsuzu
Engine Model4 D94E4 JB1
Gross Power29.8 kW29.8 kW
Number of Cylinders4—
Displacement2776.0 cc2771.1 cc
Power Measured RPM2450 RPM—
Transmission TypeHydrostaticDirect Drive
Number of Forward Gears23
Number of Reverse Gears22
Cab Height249.9 cm249.9 cm
Width Over Track161.5 cm219.5 cm
Length Overall341.4 cm353.6 cm
Length without Blade256.0 cm265.2 cm
Length of Track on Ground170.7 cm189.0 cm
Track Gauge131.1 cm149.4 cm
Ground Clearance30.5 cm30.5 cm
No of Track Rollers Per Side56
Shoe Size30.2 cm70.1 cm
Weight (Operating)3680.0 kg4410.0 kg
Track Pitch13.7 cm13.7 cm
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