Inside the Advanced Mechanisms of the 2016 Komatsu GD655-6

  • Editorial Team
  • Komatsu Motor Graders
  • 9 October 2025

The 2016 Komatsu GD655-6 is one of those motor graders that has been designed for precision as well as durability. Contractors and fleet managers like to use this model thanks to the combination of power, advanced systems, and operator-oriented design. Unlike earlier machines, the GD655-6 provides technology-based enhancements to make grading jobs faster, more fuel-efficient, and easier to control, all while keeping long-term value in mind.

Engine Power and Efficiency

At the heart of the 2016 Komatsu GD655-6 is an engine whose power is balanced with environmental responsibility.

  • 218-horsepower engine with consistent performance.

  • Meets strict Tier 4 Final emissions standards

  • Fuel efficiency improvements when compared to previous models

  • Optimized torque for heavy-duty grading applications

This engine allows operators to take on rigorous tasks without having to worry about excessive fuel usage or emissions. The better torque curve also means that it is easier to push through difficult soil conditions, get the job done efficiently.

Transmission & Powertrain Design

The transmission and powertrain are designed to ensure that operations are smooth and reliable in any environment.

  • Dual mode transmission, manual and automatic control.

  • Smooth gear shifting for the comfort of the operator.

  • Efficient power delivery to all 6 wheels.

  • Less wear and tear because of the advanced drivetrain design

This flexibility offers operators the option to use automatic ease of use or manual control for greater manual precision. With the power delivered evenly to all the wheels, the GD655-6 ensures that traction and stability are maintained, even in rough terrain.

Hydraulic System Innovations

Hydraulics are a crucial aspect of how well a grader works, and the GD655-6 doesn’t let you down.

  • Advanced load-sensing hydraulics for precise blade movement.

  • Better control using proportional valve systems

  • Reduced energy loss for better fuel economy

  • Ability to control more than one hydraulic function at the same time

This configuration allows operators to multitask efficiently, such as adjusting the moldboard angle while raising or lowering the blade, all without having to give up control or performance.

Operator Comfort and Control

Komatsu invested great attention in operator comfort and how it affects overall productivity at the job site.

  • Spacious cab for better visibility for safety.

  • Ergonomic controls to address fatigue when on shifts

  • Adjustable steering wheel and seat for customization

  • Noise and vibration reduction for a better experience.

A grader operator might work for long hours in the machine, and fatigue can easily lead to low productivity. The GD655-6 solves this by having a cab that is more like a workstation than a heavy machine. Better visibility also means that job sites are safer for all involved.

Advanced Blade Control Mechanisms

The system of blades is what makes the grader worth its money, and Komatsu has designed the system with accuracy in mind.

  • Wide blade range to cover diverse grading applications

  • Accurate positioning of the moldboard for precision

  • Compatibility with GPS and grade control systems.

  • Increased durability for heavy workloads

When combined with grade control technology, the GD655-6 provides unmatched levels of grading precision. This helps to reduce rework and keep projects on schedule, whether it’s building roads or preparing land for construction.

Maintenance and Reliability Facilities

Komatsu designed the GD655-6 to have easy servicing in mind for keeping downtime low.

  • Centralised service points for quick checks.

  • Extended service intervals minimise downtime.

  • Onboard monitoring to see early signs of a fault.

  • Designed for toughness, capable of withstanding harsh conditions

Operators and fleet managers save time with centralised maintenance points, while smart monitoring systems give warnings of small problems before they become costly ones.

Cost Efficiency & Long-Term Value

The 2016 Komatsu GD655-6 is not only about short-term performance. It’s also a machine that pays for itself over time.

  • Reduced operating costs because of fuel savings and reliability.

  • Better machine life due to advanced design.

  • High resale value because of Komatsu’s reputation.

  • Better ROI for contractors working with limited budgets.

By reducing day-to-day costs and retaining value on resale, the GD655-6 is a smart purchase for contractors and companies looking to stretch their equipment budgets.

In Summary

The 2016 Komatsu GD655-6 is more than a motor grader – it’s a combination of strength, innovation, and operator-friendly design. From its efficient engine to its advanced hydraulics to its long-term cost benefits, this machine is an excellent example of why it is a top choice for construction professionals. For contractors who appreciate the best of both worlds, precision and reliability, GD655-6 will provide the right balance of performance and long-term value.

FAQs

Q1. What is different about the 2016 Komatsu GD655-6 compared to the older Komatsu motor graders?

A: It has a Tier 4 Final engine, improved hydraulics, and an operator-centric cab design with improved efficiency and control compared to previous models.

Q2. Can the GD655-6 be used with modern grade control systems?

A: Yes, it is compatible with GPS and grade control technology to make it easier to get precise grading results with less rework.

Q3. How does the hydraulic system help in efficiency on job sites?

A: The load-sensing hydraulics ensure smoother and responsive control of the blades, while at the same time reducing fuel consumption due to reduced energy losses.

Q4. Is Komatsu GD655-6 cost-effective for long-term fleet use?

A: Absolutely. With its fuel efficiency, reliability, and high resale value, the grader is an economical choice for contractors handling multiple projects.