CAT 320D Undercarriage Parts
For Conventional (Track) Undercarriages
Shop replacement undercarriage parts for Caterpillar 320D excavators equipped with a conventional track undercarriage. This guide covers the serial number ranges below and helps identify the major components commonly replaced during undercarriage maintenance, repair, and complete undercarriage rebuilds.
Order normally. After ordering, provide your machine serial number through our Exact Fit Guarantee process and our team will verify compatibility before shipment.
⚠ Important: Confirm chain link count and bottom roller quantity before ordering. These may vary within this serial range.
➜ Ready to shop? Review the guide below, then browse the product listings below for available 320D undercarriage parts, pricing, and current availability.
CAT 320D Serial Prefix Guide
This guide covers the following Caterpillar 320D serial prefixes:
AZR
BWZ
DFT
EBT
SNS
Track Specs: Pitch 7.50 | Bolt Diameter 20mm | Link Height 105mm | Bushing O.D. 58.7mm
Common CAT 320D Undercarriage Components
The components below represent the most commonly replaced 320D undercarriage parts for machines covered by this guide. Confirm bottom roller quantity for your specific machine before ordering. Click any component to view available parts, pricing, and current stock.
Available CAT 320D Parts & Hardware
In addition to the major undercarriage components shown above, we may also offer mounting hardware, track hardware, idler hardware, track tensioning components, track guiding guards, seals, and related undercarriage parts.
Track Shoe Options: 320D track shoes are available in Single Grouser (600mm, 700mm, 800mm), Double Grouser (600mm, 700mm), Triple Grouser (600mm, 700mm, 800mm), and Rubber Pad options depending on machine configuration and application.
➜ Ready to order? Browse the product listings below to view available Caterpillar 320D track chains, track shoes, rollers, idlers, sprockets, track tensioning components, hardware, pricing, and current availability.
What To Inspect During an Undercarriage Rebuild
Replacing Track Chains?
Inspect track shoes, sprockets, rollers, and idlers.
Replacing Bottom Rollers?
Inspect carrier rollers, idlers, and chain wear.
Replacing Idlers?
Inspect recoil spring and track tensioning components.
Commonly Purchased Together
Replacing Track Chains?
Customers commonly inspect or replace:
- Track shoes
- Sprockets
- Track hardware
Replacing Bottom Rollers?
Customers commonly inspect or replace:
- Top carrier rollers
- Front idlers
- Track chain wear
Planning a Complete Undercarriage Rebuild?
A typical rebuild may include:
• Track chains
• Track shoes
• Bottom rollers
• Front idlers
• Carrier rollers
• Sprockets
Exact Fit Guarantee
Order with confidence. After placing your order, provide your machine serial number through our Exact Fit Guarantee process and our team will verify fitment before shipment. If a fitment issue is identified before shipment, we will work with you to ensure the correct parts are supplied.
Other CAT 320D Undercarriage Guides
Worldwide Shipping
