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12_323a6c22-602e-475b-b363-ec0722a850b8 - Northline Parts

Front Track Idler For Caterpillar 259D 279C 279D 289C 289D 299C 304-1878

SKU: NLT2T02207
$1,212.29 In Stock
$1,212.29
Sale price  $1,212.29 Regular price 
Ships for free in 2–4 business days.
This is a replacement front track idler for Caterpillar 259D, 279C, 279D, 289C, 289D, 299C; replaces 304-1878.
Estimated delivery between
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Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model
Caterpillar 259D, 279C, 279D, 289C, 289D, 299C

Product Overview

A loose, seized or badly worn front idler can cause poor track alignment, abnormal noise and accelerated wear across the undercarriage.

This replacement front idler restores track guidance and tension support on compatible Cat compact track loaders. Match 304-1878 and machine model before installation.

Key Features & Performance

  • Replacement front track idler for the listed application
  • Intended to restore the original function when diagnosis or inspection confirms the existing part is worn, damaged or failed
  • Match the original part number, mounting and connections before installation
  • Replaces or cross-references 304-1878

Replaces / Cross-References

  • 304-1878

What Is Included

1 replacement component for this SKU unless the product images or option selection state otherwise.

Fitment Notes

Match the original part number, machine or engine model, mounting points, connector or hose/fitting style, and any serial-number restrictions before ordering. When a manufacturer uses multiple revisions within the same model family, the equipment serial number and original component should be the final fitment check.

Frequently Asked Questions

Is this a genuine OEM part?
No, unless the product page specifically states otherwise. This listing is for a replacement, accessory, upgrade or repair component as described above. OE and interchange numbers are provided for identification and fitment reference.

How should I verify fitment before ordering?
Compare the original part number, machine or engine model, mounting arrangement and electrical, fuel or hydraulic connections with the information above. For equipment parts, also verify the machine serial number whenever the manufacturer catalog uses serial breaks.

Part Summary

Keywords: front track idler, Caterpillar 259D, 279C, 279D, 289C, 289D, 299C, 304-1878.

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