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CAT 953

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.

ComponentCAT OEM #Typical Qty
Track Chain — Sealed and Lubricated 40L1543677  ›2
Track Shoe — Single Grouser 16 in5S0821  ›78
Top Carrier Roller5A8374  ›2
Lower Roller — Single Flange31049128
Lower Roller — Double Flange1210827  ›4
Front Idler Group953WB2
Sprocket Segment Group5S0836  ›2
Track and Roller HardwareView hardware optionsAs 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.

Frequently Asked Questions (FAQs)

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Yes. Propel Parts offers aftermarket 953 track loader undercarriage parts for serial prefixes 44Z, 76Y, 77Y, and 78Y. Provide your machine serial number through the Exact Fit Guarantee process so our team can verify fitment before shipment.

Common replacement components include 953 track chains, track shoes, top carrier rollers, lower rollers, idlers, sprocket segments, and track hardware. The correct combination depends on the serial prefix and selected component design.

The reference configuration uses a 40-link sealed-and-lubricated track chain arrangement with two chains per machine. Confirm fitment by serial prefix before ordering.

The reference lists single-grouser and double-grouser track shoes in multiple widths. Confirm the required shoe style, width, and mounting-hole configuration before ordering.

The reference configuration has a 6.90-inch pitch, 109 mm link height, 62.4 mm bushing outside diameter, and 5/8-inch track-bolt diameter.

The reference configuration uses two top carrier rollers and twelve lower rollers per machine. Confirm the latest or former roller design before ordering replacement components.

Inspect the track shoes, sprocket segments, lower rollers, carrier rollers, idlers, recoil or tension components, and track hardware. Replacing worn mating components with new track chains helps support proper engagement and service life.

Track bolts and nuts are generally sold separately. Confirm the required 5/8-inch track hardware before installation and use new hardware when recommended for the selected shoe and chain arrangement.

A typical 953 undercarriage rebuild kit may include two track chains, track shoes, lower rollers, carrier rollers, front idlers, sprocket segments, and the required hardware. Inspect the complete undercarriage before ordering.

Contact Propel Parts with your order details and machine serial number. Our Exact Fit Guarantee process is designed to verify compatibility and help identify the correct part for your CAT 953 track loader.