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Komatsu GD655-7
Configuration: Base machine, 4,270 mm (14 ft) moldboard, low-profile cab, 17.5R25 tires; no ripper or push plate; EPA Tier 4 Final
21 sourced values · Sources: Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24
Dimension diagram
| A | Overall length | 10,875 mm |
| B | Overall height | 3,200 mm |
| C | Wheelbase | 6,495 mm |
| D | Ground clearance | 620 mm |
| E | Overall width | 2,680 mm |
| F | Track gauge / tread | 2,170 mm |
Weights
| Spec | Value | Source |
|---|---|---|
| Operating weight | 17,350 kg | Published: 17,350 kg Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-2438,250 lb, incl. lubricants, coolant, full fuel. With rear ripper and front push plate: 19,480 kg. |
| Max gross (laden) weight | Not published | Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24 Not published; only operating weights are given. |
Dimensions
| Spec | Value | Source |
|---|---|---|
| Overall length | 10,875 mm | Published: 10,875 mm Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24Dim. H. The dimension is marked optional (*) on the drawing, so it may include optional equipment; front tire to rear bumper (E) is 9,510 mm. |
| Overall width | 2,680 mm | Published: 2,680 mm Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24Dim. L, width over tires. Moldboard 4,270 mm. |
| Overall height | 3,200 mm | Published: 3,200 mm Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24Dim. A, low-profile cab. |
| Wheelbase | 6,495 mm | Published: 6,495 mm Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24Dim. D, front axle to centre of tandem. Tandem wheelbase (F) 1,525 mm. |
| Track gauge / tread | 2,170 mm | Published: 2,170 mm Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24Dim. I, front tread. Rear tread (K) 2,160 mm. |
| Ground clearance | 620 mm | Published: 620 mm Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24At front-axle pivot. |
| Turning radius | 7,400 mm | Published: 7,400 mm Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24Minimum (24 ft 3 in). |
Undercarriage / tires
| Spec | Value | Source |
|---|---|---|
| Undercarriage type | Wheeled, articulated (6 x 4) | Published: Wheeled, articulated (6 x 4) Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24Front axle with leaning wheels; rear tandem drive on four wheels. |
| Number of axles | 3 | Published: 3 Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24Front axle + tandem rear. |
| Wheels (count) | 6 | Published: 6 Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24 |
| Tire size | 17.5R25 | Published: 17.5R25 Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24 |
Ground pressure
| Spec | Value | Source |
|---|---|---|
| Ground pressure | Not published | Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24 Not published. |
Axle loads
| Spec | Value | Source |
|---|---|---|
| Axle load, front (unladen/operating) | Not published | Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24 Not published (brochure gives blade pull/down pressure at base GVW only). |
| Axle load, rear (unladen/operating) | Not published | Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24 Not published. |
| Axle load, front (laden/max) | Not published | Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24 Not published. |
| Axle load, rear (laden/max) | Not published | Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24 Not published. |
Engine
| Spec | Value | Source |
|---|---|---|
| Engine model | Komatsu SAA6D107E-3 | Published: Komatsu SAA6D107E-3 Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24EPA Tier 4 Final. |
| Net power | 163 kW | Published: 163 kW Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24Gears 7–8, 2,100 rpm, manual mode (218 HP). Gears 1–3: 134 kW; 4–6: 149 kW. |
| Gross power | 165 kW | Published: 165 kW Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24Gears 7–8, 2,100 rpm (221 HP). |
| Displacement | 6.69 L | Published: 6.69 L Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24 |
| Rated speed | 2,100 rpm | Published: 2,100 rpm Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24Gears 7–8; 2,000 rpm in gears 1–6. |
Hydraulics
| Spec | Value | Source |
|---|---|---|
| Pump / aux flow | 203 L/min | Published: 203 L/min Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24At rated rpm (53.6 US gpm). |
| System / relief pressure | 20.6 MPa | Published: 20.6 MPa Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24Maximum system pressure (3,000 psi). |
Performance
| Spec | Value | Source |
|---|---|---|
| Max travel speed | 48.5 km/h | Published: 48.5 km/h Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-248th gear forward (30.1 mph). Reverse 4th: 44.4 km/h. |
| Blade / moldboard width | 4,270 mm | Published: 4,270 mm Komatsu GD655-7 brochure, EN-GD655-7-BR01-0326-V4 (Tier 4 Final). Retrieved 2026-10-24Dim. J, standard moldboard. |
Similar models
| Brand | Model | Operating weight |
|---|---|---|
| Caterpillar | 150 | 17,323 kg |
| John Deere | 772GP | 17,530 kg |
| John Deere | 672GP | 17,140 kg |
| John Deere | 870 P-Tier | 17,114 kg |
| Caterpillar | 140 | 16,974 kg |
| Caterpillar | 160 | 17,804 kg |
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