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CAT 320D - Conventional Track - A6F Series

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.

➜ 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:

A6F BZP CXY FAL JFZ JGZ JPD KLM MCH MZD

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. Click any component to view available parts, pricing, and current stock.

Component Typical Quantity
320D Track Chain (Sealed & Greased)› 2
320D Track Shoes› 90 per side
320D Lower Rollers — Standard Single Flange› 14 per side
320D Top Carrier Rollers› 4 Total 2 per side
320D Front Idlers› 2
320D Sprockets› 2
320D Track Tensioning Components› 2 per side

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