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CAT 330 1st Gen (<2000) Excavator

CAT 330 Undercarriage Parts

For 1st Gen (<2000) — serial prefixes 2ZM, 6ZK, 8RL, 9NG, 9PJ, 9WJ

Shop premium 330 undercarriage parts for Caterpillar excavators equipped with a 1st Gen (<2000) undercarriage. This guide helps you identify the correct 330 excavator undercarriage parts, 330 track chains, and 330 track rollers for the serial number ranges listed below. When calculating your 330 undercarriage rebuild costs, choosing the right components is essential for maximizing the service life of your machine.

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 for available 330 excavator undercarriage parts, pricing, and current availability.

CAT 330 Serial Prefix Guide

This guide covers the following Caterpillar 330 serial prefixes:

2ZM 6ZK 8RL 9NG 9PJ 9WJ

Track Specs: Pitch 8.50"  |  Link Height 124mm

Common CAT 330 Undercarriage Components

The components below represent the most commonly replaced 330 undercarriage parts for machines with a 1st Gen (<2000) setup. Click any linked component to view pricing and availability.

Component CAT OEM # Typical Qty
Track Chain (45L) › 2019118 2
Track Shoe — 600mm N/A 90
Top Carrier Roller › 6Y5323 4
Lower Roller — Single Flange › 1791486 14
Lower Roller — Double Flange N/A 14
Front Idler › 1028152 2
Sprocket Segment › 1686727 2
Recoil Spring › 7Y0773 2

Available CAT 330 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: 330 track shoes are available in multiple width options depending on application.

➜ Ready to order? Browse the product listings below to view available Caterpillar 330 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 330 Undercarriage Guides