Verified model comparison

Caterpillar 140 vs Komatsu GD655-7

Keep grader blade, control and traction arrangements visible when comparing the two references.

Start with the finished surface

Describe the road width, shoulder or drainage task and available turning space. Compare the moldboard and wheelbase data with the intended work. A wider blade can change the working envelope; it does not by itself establish a better finished result.

Inspect blade control and structure

Ask for an assessment of circle, drawbar, moldboard slides and articulation. Check the installed grade-control equipment and confirm what remains with the machine. Worn mechanical control points can affect the value of an otherwise appealing electronic package.

Check the complete traction package

Record drive arrangement, tires, front equipment and rear ripper where fitted. Compare transmission and brake service records and obtain a suitable functional inspection. Carry all removable equipment into the transport and delivered-cost comparison.

Questions that decide the shortlist

Start with the finished surface — what exact configuration is offered?
Which missing records or inspection findings would change the delivered cost?
Can the seller demonstrate the required task with the supplied equipment?

Caterpillar 140 Motor GraderCurrent 140 / 140 AWD LVR product pageUnited States / North American reference

Komatsu GD655-7 Motor GraderCurrent GD655-7 product pageUnited States / North American reference

Generation/configuration-aware: measurement basis and reference configuration travel with each value. A difference in basis is not treated as a performance difference.

Caterpillar 140 vs Komatsu GD655-7 manufacturer-published specifications
Specification	Caterpillar 140 Motor Grader	Komatsu GD655-7 Motor Grader
Net engine power	250 hp186 kWISO 9249 · ISO 9249 / SAE J1349	218 hp163 kWManufacturer net power at 2,100 rpm
Operating weight — typically equipped	44,613 lb20,236 kgTypically equipped configuration	38,250 lb17,350 kgBase published configuration
Moldboard width	12 ft3.7 mStandard published moldboard	14 ft 0 in4,270 mmGD655-7 base machine with 17.5R25 tires, standard 14 ft moldboard and no added front or rear attachment.
Length of machine	33 ft 1.6 in10,100 mmTypically equipped 140 / 140 AWD LVR with push block and ripper; basic blade width retained separately as the moldboard reference.	35 ft 8 in10,875 mmGD655-7 base machine with 17.5R25 tires, standard 14 ft moldboard and no added front or rear attachment.
Width	8 ft 1.6 in2,480 mmTypically equipped 140 / 140 AWD LVR with push block and ripper; basic blade width retained separately as the moldboard reference.	8 ft 9 in2,670 mmGD655-7 base machine with 17.5R25 tires, standard 14 ft moldboard and no added front or rear attachment.
Maximum height	11 ft 0 in3,354 mmTypically equipped 140 / 140 AWD LVR with push block and ripper; basic blade width retained separately as the moldboard reference.	10 ft 6 in3,200 mmGD655-7 base machine with 17.5R25 tires, standard 14 ft moldboard and no added front or rear attachment.
Ground clearance at rear axle	1 ft 1.3 in337 mmTypically equipped 140 / 140 AWD LVR with push block and ripper.	2 ft 0 in620 mmGD655-7 base machine with 17.5R25 tires, standard 14 ft moldboard and no added front or rear attachment.
Wheelbase	Not published in this research record	21 ft 4 in6,500 mmGD655-7 base machine with 17.5R25 tires, standard 14 ft moldboard and no added front or rear attachment.

Caterpillar 140 Motor Grader

A construction-grader reference where control choice, AWD and attachments can materially affect the package.

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Komatsu GD655-7 Motor Grader

The Komatsu GD655-7 publishes base and ripper-equipped weights, net power and a 14-foot moldboard, preserving the transport and configuration impact of rear equipment.

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Total cost of ownership

Carry utilization, fuel, wear, attachments and transport into an editable planning model.

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No winner is declared. Job fit depends on configuration, condition, dealer support, attachments, transport and cost assumptions beyond these published figures.