Komatsu GD655-7
Dual-mode transmission for fine and heavy grading
The Komatsu GD655-7 is a medium motor grader whose dual-mode transmission switches between direct drive and a torque converter for both precision finishing and heavy cutting.
+Strengths
- Dual-mode transmission adapts to the task
- Good visibility to the moldboard
- KOMTRAX telematics
−Watch-outs
- Traditional lever controls on many versions
Overview
The Komatsu GD655-7 is a medium grader built for road construction and maintenance.
Dual-mode transmission
In direct drive, the grader has a precise, consistent ground speed for finishing. In torque converter mode, it automatically absorbs shocks and avoids stalling during heavy cutting and spreading. The operator can let the machine choose or select manually.
Who it suits
Contractors who mix heavy cutting and fine grading on the same project.
Komatsu GD655-7 specifications
| Operating weight | ≈16,000–17,500 kg (35,300–38,600 lb) |
|---|---|
| Net power | ≈163 kW (218 hp) |
| Moldboard | 3.7 m (12 ft); 4.3 m (14 ft) option |
| Transmission | Dual-mode (direct drive / torque converter) |
Figures are typical for standard configurations as published by Komatsu. Values vary by market, emissions tier, attachments and options; confirm with your dealer before purchase, transport or lifting.
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