CAT 953 Track Loader Undercarriage Parts

For serial prefixes 44Z, 76Y, 77Y, and 78Y

Shop premium 953 undercarriage parts for Caterpillar track loaders with the serial prefixes listed below. This guide helps you identify the correct 953 track loader undercarriage parts, 953 track chains, and 953 rollers for your machine. When planning a 953 undercarriage rebuild kit, choosing compatible components is essential for dependable service.

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 953 track loader undercarriage parts, pricing, and current availability.

CAT 953 Serial Prefix Guide

This guide covers the following Caterpillar 953 serial prefixes:

44Z 76Y 77Y 78Y

Track Specs: Pitch 6.90 in | Link Height 109 mm | Bushing O.D. 62.4 mm | Bolt Diameter 5/8 in

Common CAT 953 Undercarriage Components

The components below represent commonly replaced 953 track loader undercarriage parts. Availability and fitment depend on the machine serial prefix, component design, and selected shoe width.

Component	CAT OEM #	Typical Qty
Track Chain — Sealed and Lubricated 40L	1543677 ›	2
Track Shoe — Single Grouser 16 in	5S0821 ›	78
Top Carrier Roller	5A8374 ›	2
Lower Roller — Single Flange	3104912	8
Lower Roller — Double Flange	1210827 ›	4
Front Idler Group	953WB	2
Sprocket Segment Group	5S0836 ›	2
Track and Roller Hardware	View hardware options	As required

Available CAT 953 Parts & Hardware

Availability may include track chains, shoes, rollers, idlers, sprocket segments, track bolts, nuts, roller hardware, and related undercarriage parts. Confirm the required design and serial prefix before ordering.

Track Shoe Options: Single-grouser and double-grouser shoe options are shown in the equipment reference, with width choices depending on the application.

➜ Ready to order? Browse the product listings below to view available Caterpillar 953 track chains, track shoes, rollers, idlers, sprockets, hardware, pricing, and current availability.

What To Inspect During a CAT 953 Undercarriage Rebuild

Replacing Track Chains?
Inspect track shoes, sprockets, rollers, and idlers.

Replacing Rollers?
Inspect carrier rollers, lower rollers, idlers, and chain wear.

Replacing Idlers?
Inspect sprockets, track tension, and connected hardware.

Commonly Purchased Together

Replacing Track Chains?

Customers commonly inspect or replace:

Track shoes
Sprockets
Track hardware

Replacing Rollers?

Customers commonly inspect or replace:

Top carrier rollers
Front idlers
Track chain wear

Planning a Complete 953 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.