Cat® HDXL with DuraLink™

Innovation drives 20 to 40% longer life

Designed for maximum durability, this patented system consists of Cat® heavy duty extended life (HDXL) with DuraLink, larger diameter bushing, track roller, and sprocket segments. This combination creates a link assembly with more wear material and improved life. It handles your most demanding terrain without breaking. Enhancements include:

  • Improved link to help eliminate cracking and spalling
  • PPR2 provides better pin retention for longer life sealability
  • Larger bolt improves shoe retention in severe applications
  • New crowned link helps to eliminate link scalloping
  • Increased bushing material for extended wear life
  • Improved sealing system eliminates dry joint issues



Move more material, more efficiently

When the iron is designed specifically for your application, your work is more effective and efficient. We design and manufacture our own undercarriage to ensure full integration with your machines, and we keep developing new products that keep your uptime up and your O&O costs down.



– Tim Nenne, Senior Undercarriage Market Professional


Responsive service and long life

To help you get the most from your Cat undercarriage, your Cat dealer provides service and support for all undercarriage configuration options, from advanced diagnostics to worldwide parts delivery. Ask your Cat dealer about replacing your next undercarriage with the patented Cat HDXL with DuraLink.




Every Cat undercarriage is designed by Caterpillar engineers and built to integrate with your Cat machines and designed to work as a system. We continue to develop innovations to reduce O&O costs and maintenance intervals while increasing uptime, productivity, and service life.

All the right choices

All the right choices

Undercarriage products for large track-type tractors, hydraulic mining shovels, electric rope shovels, and rotary drills

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Cat HDXL with DuraLink for D8R/T

Cat HDXL with DuraLink for D8R/T

The more precisely the iron matches the application, the more effective and efficient your work will be.

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Twice the coverage on compact machines
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