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

FeatureKomatsu D31A-17DozerKomatsu D31PLL-17Dozer
TypeCrawler DozerCrawler Dozer
Horsepower49.2 kW50.7 kW
Operating Weight5121.1 kg7550.0 kg
Engine ManufacturerKomatsuKomatsu
Engine Model4 D105-54 D105-5
Gross Power49.2 kW50.7 kW
Displacement4326.2 cc4331.1 cc
Transmission TypePlanetary GearHydrostatic
Number of Forward Gears33
Number of Reverse Gears33
Max Speed Forward6.6 km/h—
Max Speed Reverse7.2 km/h—
Ground Pressure0.4 bar—
Fuel Capacity115.1 l—
Cooling System Capacity22.3 l—
Cab Height271.3 cm271.3 cm
Width Over Track185.9 cm295.7 cm
Length without Blade286.5 cm—
Length of Track on Ground189.0 cm259.1 cm
Track Gauge146.3 cm192.0 cm
No of Track Rollers Per Side58
Shoe Size33.0 cm105.2 cm
Weight (Operating)5121.1 kg7550.0 kg
Number of Cylinders—4
Power Measured RPM—2350 RPM
Length Overall—426.7 cm
Ground Clearance—39.6 cm
No of Carrier Rollers Per Side—2
No of Shoes Per Side—46
Track Pitch—15.5 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