What is Heavy Duty?
Cat® Heavy Duty undercarriages deliver exceptional durability and strength for high-impact applications. Engineered for maximum reliability, they provide long-lasting performance and maintain upgrade compatibility—ensuring your investment works harder for you.
Where Do Heavy Duty Undercarriages Perform Best?
How do our undercarriages compare?
Use the table below to see how Cat undercarriages stack up with the competition.
- 4 years / 3,000 hours
- 4 years / 6,000 hours (D11)
- 4 years / 5,000 hours (D9-D10)
- 4 years / 3,000 hours
- 3 years / 4,000 hours
- Single Flange
- Double Flange
- Single Flange
- Double Flange
- Single Flange
- Double Flange
Want to learn more about how Heavy Duty undercarriages compare to other models?
RELATED VIDEOS
How to Measure Your
Undercarriage
Watch the video to learn the correct steps to measure your Cat® undercarriage and keep your equipment performing at its best.
Keep Your Machine Moving with Free Cat CTS Inspections
Watch the video and discover how CTS inspections help monitor undercarriage health and prevent costly downtime.

0% for 24 Months
on Undercarriages When Using the Cat® Card
When you use your Cat® Card, you’ll get 0% financing for 24 months on undercarriages, giving you the flexibility to upgrade now and pay over time with zero interest.
Save NowSUPPORT BEYOND THE TRACKS
From legendary customer support to financing built for your business, Toromont Cat is there to support you every step of the way.

Finance Made Simple with Cat® Card
The Cat® Card is your fast, flexible way to pay for parts, service, rentals, and more, while offering competitive rates, special offers, rewards and other benefits.

Get Your Undercarriage Inspected
Keep your undercarriage running smoothly with a fast, free, no obligation CTS inspection performed on-site by our experts.

Confidence Comes Standard with CVAs
Enjoy scheduled maintenance, genuine Cat® parts, and expert dealer support, all for one predictable monthly payment.

Custom Repair Options Made for You
Whether your machine needs a minor adjustment or a major rebuilds, our custom repair options keep your equipment performing at its best.
Your machine’s performance
starts from the ground up.
Caterpillar undercarriage systems are engineered to deliver unmatched durability, precision, and value. Whether you're working in abrasive conditions or high-impact environments, our undercarriage components are built to go the distance—so you can focus on the job, not the downtime.
Mitch MacNeil,
Wear Products & Application Manager
Heavy Duty Undercarriage Frequently Asked Questions
What is a Heavy Duty undercarriage?
It’s a robust solution for moderate-to-high impact applications, delivering superior durability and extended wear life while maintaining Caterpillar quality and reliability.
When should I choose Heavy Duty over General Duty or HDXL?
Select Heavy Duty for demanding conditions where strength and longevity matter. For lighter applications, General Duty offers a lower upfront cost. For extreme environments and maximum wear life, HDXL is the best choice.
Is Heavy Duty compatible with other Cat undercarriage systems?
Yes. Heavy Duty components are interchangeable with General Duty systems, making upgrades simple without retrofitting your Cat® machine.
How long does a Heavy Duty undercarriage last?
Track wear depends on application, operating conditions, and maintenance practices—regular inspections and correct track tension are essential for optimal performance.
Does Heavy Duty come with warranty coverage?
Yes. Caterpillar offers standard warranty coverage along with optional Undercarriage Assurance Programs for extra peace of mind.
Do you offer financing?
Absolutely. Customers can take advantage of flexible financing through the Cat® Card, an unsecured line of credit for parts, service, and rebuilds. Eligible accounts enjoy promotions like 0% financing for up to 36 months and earn Cat Vantage Rewards on qualifying purchases.
What makes Heavy Duty different from General Duty?
Heavy Duty undercarriages deliver up to 20% longer wear life for tough, high-impact conditions, while General Duty is designed for lighter applications at a lower initial cost. Both systèmes use interchangeable components for easy conversion as your needs evolve.
What is Cat SystemOne undercarriage?
Cat® SystemOne undercarriage uses innovative rotating bushing technology
to eliminate manual pin and bushing turns during maintenance.
Designed
as an integrated system, SystemOne components feature reusable sprockets
and center tread idlers that last up to two undercarriage lives—helping
reduce downtime and lower replacement costs on Cat® Track-Type machines.
Protect your investment.
Chat with us today to find the undercarriage solution that's right for you.
CONTACT US
Need support choosing the best undercarriage, evaluate wear or schedule parts replacement and preventive maintenance? Our specialists are here to help.
Call us at 1-855-415-5955 or simply complete and submit the form below, and one of our representatives will connect with you shortly to discuss your equipment needs.


