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Komatsu GD955-7
Configuration: 5.5 m (18 ft) moldboard, 26.5R25 L3 tires, three-shank ripper and pusher; EPA Tier 4 Final
23 sourced values · Sources: Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25
Dimension diagram
| A | Overall length | 13,200 mm |
| B | Overall height | 3,990 mm |
| C | Wheelbase | 8,330 mm |
| D | Ground clearance | 710 mm |
| E | Overall width | 3,685 mm |
| F | Track gauge / tread | 3,005 mm |
Weights
| Spec | Value | Source |
|---|---|---|
| Operating weight | 47,320 kg | Published: 47,320 kg Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25Includes lubricants, coolant, full fuel, 5.5 m blade, L3 tires, three-shank ripper and pusher (104,323 lb). With 6.1 m blade, L4 tires, five-shank ripper and access platform: 48,570 kg. |
| Max gross (laden) weight | Not published | Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25 Not published; only operating weights are given. |
Dimensions
Undercarriage / tires
| Spec | Value | Source |
|---|---|---|
| Undercarriage type | Wheeled, articulated (6 x 4) | Published: Wheeled, articulated (6 x 4) Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25Front axle with leaning wheels; rear tandem drive on four wheels. Articulation 27°. |
| Number of axles | 3 | Published: 3 Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25Front axle + tandem rear. |
| Wheels (count) | 6 | Published: 6 Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25 |
| Tire size | 26.5R25 L3 | Published: 26.5R25 L3 Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25Multi-piece rims. |
Ground pressure
| Spec | Value | Source |
|---|---|---|
| Ground pressure | Not published | Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25 Not published in the brochure. |
Axle loads
| Spec | Value | Source |
|---|---|---|
| Axle load, front (unladen/operating) | 13,800 kg | Published: 13,800 kg Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25On front wheels, at the 47,320 kg operating configuration. |
| Axle load, rear (unladen/operating) | 33,520 kg | Published: 33,520 kg Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25On rear wheels, at the 47,320 kg operating configuration. |
| Axle load, front (laden/max) | Not published | Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25 Not published in the brochure. |
| Axle load, rear (laden/max) | Not published | Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25 Not published in the brochure. |
Engine
| Spec | Value | Source |
|---|---|---|
| Engine model | Komatsu SAA6D140E-7 | Published: Komatsu SAA6D140E-7 Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25EPA Tier 4 Final. |
| Net power | 311 kW | Published: 311 kW Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25ISO 9249, 1,900 rpm (417 HP). |
| Gross power | 318 kW | Published: 318 kW Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25SAE J1995, 1,900 rpm (426 HP). |
| Displacement | 15.24 L | Published: 15.24 L Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25 |
| Rated speed | 1,900 rpm | Published: 1,900 rpm Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25 |
Hydraulics
| Spec | Value | Source |
|---|---|---|
| Pump / aux flow | 315.2 L/min | Published: 315.2 L/min Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25Variable displacement piston pump at rated rpm (83.3 gpm). |
| System / relief pressure | 27.5 MPa | Published: 27.5 MPa Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25Maximum system pressure (3,989 psi). |
Performance
| Spec | Value | Source |
|---|---|---|
| Max travel speed | 43.6 km/h | Published: 43.6 km/h Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-258th gear forward at rated rpm, 26.5R25 L3 tires (27.1 mph); 44.4 km/h at full accelerator. |
| Blade / moldboard width | 5,490 mm | Published: 5,490 mm Komatsu GD955-7 motor grader brochure, GD955-7-BR0-0524-V2 (© 2024, EPA Tier 4 Final). Retrieved 2026-10-25Dim. J, standard moldboard (18 ft). |
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