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Conquer challenging sloped terrains with an all-purpose track harvester equipped with a heavy-duty four-way leveling system. Enjoy a comfortable cab, easy serviceability, and versatile performance thanks to advanced design features.

  • Significantly greater lift capacity*
  • 10% more horsepower/16% more torque*
  • 5% lower fuel consumption*
  • Excellent uptime and serviceability

*Compared to XT-3 models. All comparisons and claims of improved performance made herein are made with respect to the prior Komatsu model unless otherwise specifically stated. ©2022 Komatsu America Corp.

Product Features and benefits:

Helps Reduce Servicing Downtime

Efficiency in servicing is crucial for minimizing machine downtime. Komatsu facilitates swift service with engine gull-wing and wide swing-out doors that provide quick and easy access to all engine service points and key components.

Equipped to Multi-Task

The tracked harvester is a versatile powerhouse with a closed-loop system, enabling operators to simultaneously travel, cut, delimb, harvest, and swing timber. Engineered with dedicated hydraulic lines for each function, it enhances performance while mitigating the risk of machine damage.

Maneuvers in Dense Terrain

Designed for optimal performance in challenging environments, the harvester excels in dense forests and clear-cutting scenarios. Its short-tail swing design allows cutting close to the undercarriage and tracks, aided by set-back boom engineering and powerful swing torque for demanding applications.

Better Lift Capacity

Handling trees with extended arms is made easier by a design that significantly boosts lift capacity compared to previous models. The harvester achieves an excellent balance between boom lift and arm holding capacity, offering versatility. It can be equipped with a variety of harvesting saw heads.

Designed for Operator Comfort

Prioritizing operator well-being, the harvester provides a spacious and comfortable work environment. Superior visibility, especially towards the tracks, along with powerful heating, cooling, and defrosting systems contribute to reduced fatigue and enhanced productivity.

Customizable for Each Operator

To accommodate various operator preferences during shifts, controls can be easily adjusted to each operator’s liking (up to three settings). This customization extends to joystick, boom, stick, tool tilt, swing, cab leveling, and more, aiming to maximize productivity.

Adapts to Long or Short Reach

Flexibility is key, and the harvester adapts to different job requirements with two working ranges. Opt for the short reach and a larger-scaled head for specific tasks, and switch to a longer reach with a more compact head for restricted spaces.

Powerful and Fuel-Efficient

The harvester is equipped with a potent and efficient Cummins QSL9 engine. Delivering more horsepower and torque while utilizing less fuel compared to XT-3 models, it meets EPA Tier 4 final emissions standards.

Stands Up to Debris

Acknowledging the challenges of forestry conditions, the harvester is fortified with specific forestry guarding designs to minimize risks associated with debris, ensuring smoother operations and higher productivity.

Promoting Stability on Slopes

Operators can work confidently on sloped terrains, thanks to a heavy-duty four-way leveling system that promotes front/rear/side leveling, enhancing stability. The strategic fuel tank placement lowers the center of gravity for further stability.

Designed to Meet Job Demands

Recognizing the diversity in forestry harvesting demands, Komatsu tracked harvesters are designed for adaptability. They can be factory-equipped with a broad selection of harvesting saw heads to match the performance required at different job sites.

Promote Lower Maintenance Costs

The harvester is engineered for cost efficiency, featuring an innovative hydraulic tank system design that reduces hydraulic oil needs by 55% compared to XT-3 models. Additionally, the pumps, equipped with hydro-nucleation, help prevent pump cavitation and are 17% larger, extending component life by operating 500 rpm slower. (17% larger than the XT-3.)

Product Specifications for XT445L-5:


  • Model: Cummins QSL9 diesel engine
  • Type: Watercooled, 4-cycle, direct injection
  • Aspiration: VGT™ Turbocharger, infinitely adjustable with electronic controls. High pressure fuel injection, in-cylinder advanced combustion technology, cooled EGR.
  • Number of cylinders: Inline, 6-cylinder
  • Bore: 4.49 in
  • Stroke: 5.69 in
  • Piston displacement: 9L, 543 in³
  • Horsepower:
    • Peak: 331 HP @ 1,600 rpm
    • Rated: 300 HP @ 2,000 working rpm
  • Peak Torque: 1,160 lbs.-ft. @ 1,600 rpm
  • Fan Drive Type: Hydraulic
  • Complies with U.S. EPA Tier 4 Final emissions standard

Electrical system:

  • Type: 24 V with master disconnect
  • Alternator: 24 V, 100A
  • Work Lights: 13 LED


  • Implement pump: Variable displacement piston, Max Flow 324 L/min
  • Attachment pump: Variable displacement piston, Max Flow 200 L/min
  • Saw pump: Variable displacement piston, Max Flow 143 L/min
  • Track drive pump: 2x Variable displacement piston, Max Flow 167 L/min
  • Fan pump: 2x Gear, Max Flow 44 L/min
  • Charge pump: 2x Gear, Max Flow 95 L/min
  • Travel motor: Variable displacement piston
  • Swing motor: Fixed displacement bent axis piston
  • Cooling: Independent Radiator/CAC/ Hydraulic oil coolers with thermostatically controlled fans

Swing system:

  • Rotation: Continuous rotation
  • Bearing: Heavy-duty, 22-bolt single row bearing
  • Drive method: Hydrostatic
  • Swing speed: 5.9 rpm
  • Swing torque: 64,444 lbs.-ft
  • Swing brake: Dynamic
  • Parking brake: Hydraulic


  • Available heads: C144, C93


  • Car body: HD boxed frame structure with flat bottom and storage trunk
  • Track frame: Box-section, bolted
  • Track type: Grease sealed
  • Number of shoes/links: 46 per side
  • Track rollers: 8 per side
  • Bushings and rollers: Heavy-duty
  • Track pitch: 8.5″

Boom performance:

  • Lifting capacity (less attachment): 8.5 m @ 1.5 m off the ground
    • @ 10′: 11,022 kg
    • @ 15′: 8,327 kg
    • @ 20′: 6,245 kg
    • @ Full reach: 3,354 kg

Coolant and lubricant capacity (refilling):

  • Fuel tank: 172 gal
  • Cooling system: 9.43 gal
  • Engine oil pan: 4.99 gal
  • Final drive per side: 2.91 gal
  • Swing gear box: 1.14 gal
  • Hydraulic tank: 57 gal
  • DEF: 15 gal
  • Gear box (PTO): 1.63 gal
  • Hood tilt: 1.19 gal

Operating weight (less attachment):

  • Track shoes: SG 24″
  • Operating weight*:
    • TH (8.5 m): 71,286 lbs.
    • TH (10 m): 72,223 lbs.
  • Ground pressure: 9.7 psi
  • *Operating weight includes harvester boom, harvester arm, 1/2 tank of fuel, rated capacity of lubricants, coolant, operator and standard equipment.

Further information on this machine can be viewed by visiting this link

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DISCLAIMER: The information that has been provided in this article is sourced from The author does not assume any responsibility or liability for the accuracy, completeness, or usefulness of the information provided. The author shall not be held liable for any loss or damage resulting from the use of this content. For further information please contact the manufacturer directly.