SPECS / COMPARISON

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

Feature	Komatsu D155AX-7Dozer	Komatsu WF550T-3Dozer
Type	Crawler Dozer	Crawler Dozer
Horsepower	268.5 kW	235.0 kW
Operating Weight	39507.9 kg	35100.0 kg
Pump Flow	180.2 LPM	—
Engine Manufacturer	Komatsu	Komatsu
Engine Model	SAA6D140E-6	SA6D140E
Gross Power	268.5 kW	235.0 kW
Net Power	264.0 kW	—
Number of Cylinders	6	—
Displacement	250.7 cc	15200.7 cc
Power Measured RPM	1900 RPM	—
Transmission Type	Torqflow	Full powershift
Number of Forward Gears	3	4
Number of Reverse Gears	3	4
Max Speed Forward	11.6 km/h	8.2 km/h
Max Speed Reverse	14.0 km/h	12.7 km/h
Ground Pressure	0.8 bar	—
Fuel Capacity	624.6 l	336.9 l
Engine Oil Capacity	37.1 l	37.9 l
Cooling System Capacity	103.3 l	68.1 l
Hydraulic Capacity	91.6 l	159.0 l
Final Drives Capacity	31.0 l	—
Pump type	Piston	2 pump system w/main, switch pump
Hydraulic Pump Flow	180.2 LPM	—
Relief Valve Pressure	274.4 bar	—
Ground Contact Area	101.6 cm³	—
No of Carrier Rollers Per Side	2	—
No of Shoes Per Side	42	—
No of Track Rollers Per Side	7	—
Shoe Size	71.1 cm	—
Weight (Operating)	39507.9 kg	35100.0 kg
Max Torque	—	1375.1 N-m
Alternator Supplied Amp.	—	75 A
Alternator	—	75 A
Battery	—	24 V
Cab Height	—	423.7 cm
Width Over Track	—	121.9 cm
Length Overall	—	816.9 cm
Ground Clearance	—	51.8 cm
Source	heavyequipments.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