Undercarriage for Small Dozers
Undercarriage for Small Dozers





What’s the key to lower costs, more uptime and greater productivity from your small Cat® dozer? Matching the right undercarriage to your machine, application and underfoot conditions. We’ve got options to fit your job and your budget — all designed and manufactured by Caterpillar and backed by industry-leading Undercarriage Assurance.





Nine Selection Factors to Consider

Undercarriage can account for as much as 50% of your small dozer’s costs, so it pays to invest in a system that delivers the most value for your specific machine and work conditions. Weigh these factors and take advantage of your Cat dealer’s analysis tools as you make your selection.

Undercarriage Selection Factors
Undercarriage Selection Factors


Track Frame Configuration


Track Shoe Width


Track Shoe Type


Blade Type


Rear Attachment


Other Attachments


Underfoot Conditions




Packing Conditions




Six Questions to Find
Your Best Fit

Ownership period, machine usage, site conditions — there’s a lot to consider as you’re selecting undercarriage. Ask yourself these questions as you define your parameters. The answers will help you choose the option that fits both the demands of your work environment and your budget.

Questions to Help You Select the Right Undercarriage
Questions to Help You Select the Right Undercarriage


How long will I own this dozer?


How many hours a week will I use this dozer?


What are my typical ground/soil conditions?


What are my impact conditions?


What attachments are on my dozer?


What grades/slopes are typical on my jobsite?




Undercarriage Choices
for Small Dozers

We offer more undercarriage choices for your Cat machines than any other manufacturer. Why? Because the more precisely you match the iron to your application, the better your results. Explore your options for D1 (D3K2, D3K, D3G, D3C, D3B), D2 (D4K2, D4K, D4G, D4C, D4B), and D3 (D5K2, D5K, D5G, D5C) dozers.

Undercarriage Choices for Small Dozers
Undercarriage Choices for Small Dozers


General Duty Undercarriage

Working in low-to-moderate-impact conditions? Cat General Duty delivers performance you can count on across a wide range of applications. Components are interchangeable with Heavy Duty for flexibility.


Heavy Duty Undercarriage

Tough jobs call for tough track. Cat Heavy Duty can extend system life up to 20% versus General Duty in aggressive high-impact applications, rocky or uneven terrain and challenging underfoot conditions.


Cat® Abrasion™ Undercarriage

There’s no smarter choice for high‑abrasion, low-to-medium-impact conditions. With an advanced design that extends wear life, reduces maintenance and improves sealability, Cat Abrasion™ is the low-cost-per-hour leader.








Get the best return on your investment with Cat Undercarriage Assurance. It covers all major moving undercarriage components on your small Cat dozer — delivering the protection you want for greater peace of mind and lower cost of ownership.


Undercarriage Assurance

General Duty

Heavy Duty

Cat Abrasion

All Moving Components All Moving Components All Moving Components
4 4 4
3,000 4,000 6,000
100% 100% 100%


  1. Coverage ends with the stated years, hours, or percent worn, whichever occurs first.
  2. Rolling components include track shoes, sprockets, track rollers, carrier rollers, track idlers, and hardware for tracks and sprockets.
  3. Coverage is prorated to 100% component wear life or 3,000 hours.





Want to explore your small dozer options further?

Here’s some additional information to help you make the best undercarriage choice for your machine and application.

Undercarriage Information for Small Dozers
Undercarriage Information for Small Dozers


Small Dozer Undercarriage Product Line Brochure
Small Dozer Undercarriage Product Line Brochure

Product Overview

View Brochure


Small Dozer Undercarriage Choices by Application
Small Dozer Undercarriage Choices by Application

Options By Application

View Flyer


Small Dozer Undercarriage Selection Guide
Small Dozer Undercarriage Selection Guide

Selection Guide

View Guide




Connect with your local Cat dealer

Find Your Dealer



A Lineup of Top Performers

Caterpillar is the only OEM that designs and manufactures its own undercarriage. Learn more about the proven performance of Cat undercarriage.

Take a Closer Look


Wear & Maintenance Parts

Quality parts make a big difference in keeping your site on track. Take a closer look at the full line of Cat wear and maintenance parts for construction equipment.

Learn More