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

FeatureKomatsu D37EX-21 KOMSTAT IIDozerJohn Deere 650H XLTDozer
TypeCrawler DozerCrawler Dozer
Horsepower63.4 kW67.1 kW
Operating Weight6010.1 kg8436.8 kg
Engine ManufacturerKomatsuJohn Deere
Engine ModelSAA4D102E-24045 T
Net Power63.4 kW67.1 kW
AspirationTurbocharged with aftercooledTurbocharged
Number of Cylinders44
Displacement3932.9 cc4522.8 cc
Transmission TypeDual Power ShiftDual Power Shift
Number of Forward Gears3—
Number of Reverse Gears3—
Max Speed Forward8.5 km/h8.0 km/h
Max Speed Reverse8.5 km/h8.0 km/h
Ground Pressure0.4 bar0.4 bar
Fuel Capacity165.0 l177.9 l
Engine Oil Capacity12.5 l14.0 l
Cooling System Capacity26.9 l16.3 l
Hydraulic Capacity46.9 l32.2 l
Final Drives Capacity3.4 l6.8 l
Relief Valve Pressure206.2 bar206.8 bar
Cab Height271.3 cm277.4 cm
Width Over Track185.9 cm201.2 cm
Length Overall402.3 cm—
Length of Track on Ground225.6 cm234.7 cm
Track Gauge146.3 cm—
Ground Clearance39.6 cm36.6 cm
Ground Contact Area45474.2 cm³54274.1 cm³
No of Shoes Per Side4140
No of Track Rollers Per Side67
Shoe Size40.6 cm45.7 cm
Weight (Operating)6010.1 kg8436.8 kg
Track Pitch144.8 cm17.3 cm
Pump Flow—56.8 LPM
Max Torque—428.4 N-m
Power Measured RPM—2200 RPM
Torque Measured RPM—1200 RPM
Alternator Supplied Amp.—65 A
Alternator—65 A
Battery—12 V
Pump type—Gear type
Hydraulic Pump Flow—56.8 LPM
Length without Blade—426.7 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