KOMATSU GD955-7
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2025
Komastu
gd955-7
New
Engine
| Model | Komatsu SAA6D140E-7 |
| Type | Water-cooled, 4-cycle, direct injection |
| Aspiration | Turbocharged and air-to-air aftercooled |
| No. of cylinders | 6 |
| Bore | 5.6" |
| Stroke | 6.5" |
| Piston displacement |
4 gal |
| Engine power (manual mode) | |
| SAE J1995 | Gross 318 kW (426 HP)/1,900 rpm |
| ISO 14396 | 318 kW (426 HP)/1,900 rpm |
| ISO 9249 (net engine power) | Net 311 kW (417 HP)/1,900 rpm |
| Maximum torque | 1,586 ft.-lbs. 2,150 N·m (219 kgf·m)/1,350 rpm |
| Torque rise | 37% |
| Fan speed | Max. 1,300 rpm |
| Air cleaner | 2-stage, dry-type |
| U.S. EPA Tier 4 Final emissions certified. |
Tandem drive
| Oscillating welded box section | 2' 5" x 12" |
| Side wall thickness: inner | 1" |
| outer | 1" |
| Wheel axle spacing | 6' 6" |
Blade range
| Moldboard side shift: | |
| Right | 2' 8" |
| Left | 3' 1" |
| Maximum shoulder reach outside rear tires (frame straight) | |
| Right | 6' 11" |
| Left | 7' |
| Maximum lift above ground | 1' 8" |
| Maximum cutting depth | 1' 9" |
| Blade tip angle | 49-degrees forward, 3-degrees backward |
Hydraulics
| Output (at engine rated rpm) | 83.3 gpm |
| Maximum system pressure | 3,989 psi |
Instruments
Electric monitoring system with diagnostics
Standard guages
Articulation, engine coolant temperature, fuel level, speedometer, transmission shift indicator, engine tachometer, torque converter oil temperature, DEF level, hydraulic oil temperature, ECO gauge
Operating weight (approximate)
Includes lubricants, coolant, full fuel tank, 5.5 m blade, L3 tire, ripper (three shanks) and pusher
| Total | 104,323 lbs. |
| On front wheels | 30,424 lbs. |
| On rear wheels | 73,899 lbs. |
Includes lubricants, coolant, full fuel tank, 6.1 m blade, L4 tire, ripper (five shanks), pusher and access platform
| Total | 107,079 lbs. |
| On front wheels | 31,019 lbs. |
| On rear wheels | 76,059 lbs. |
Features and benefits
Get consistent, reliable grades
A long wheelbase and heavy operating weight allow the GD955-7 to achieve high blade downforce pressures at more aggressive moldboard angles for improved penetration and material flow in hard-packed road surface applications.
Work effectively in confined areas
The large 27-degree articulation angle allows a tight turning radius and provides maneuverability for narrow haul road applications in confined spaces and around obstacles.
Strong and durable structure
Redesigned front and rear frames help withstand bending forces and torsional loads, promoting reduced life-cycle costs and a longer service life.
Make maintenance easy
A newly adopted bearing-type circle assembly eliminates wear plates and the need for frequent play adjustments to help minimize downtime. Coupled with an auto-lubrication system, this helps to reduce maintenance times by up to 21%*.
Optimize your machine's performance
Perform routine checks, inspections and repairs conveniently with a centrally located, ground-level service center. Regular maintenance helps promote your machine's uptime, while easy access streamlines maintenance workflow.
Flexible for all operator levels
Enhance production with the efficiency of a direct-drive transmission and the controllability of a torque converter drive transmission. Perfect for trained operators of all experience levels and applicable to a wide variety of tasks, including maintaining and building haul roads
Stay comfortable while working
Operators can work comfortably in the cab throughout the day with an air-suspension, heated and ventilated seat that helps dampen mechanical vibrations. Operators can also electronically or manually adjust the control lever console height to their preference.
Precise control efficient operation
Controls within easy reach allow operators to quickly adjust to changing grading conditions or terrain. This helps optimize performance, while fingertip controls make for a more ergonomic and comfortable working environment.
Facilitating work site visibility
The hexangular cab and integrated control console layout allow for improved visibility to the moldboard. Strategically placed mirrors enhance visibility, while KomVision provides a bird’s-eye view around the vehicle on an in-cab monitor. *Compared to the previous model