304-1878 Front Idler for Caterpillar 259D 279D 289D 299D + More

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  • Part Number: 304-1878
  • Front Idler
  • Fits Caterpillar: 259B3, 259D, 259D3, 279C, 279C2, 279D, 279D3, 289C, 289C-2, 289D, 289D3, 299C, 299D, 299D3
  • Sold As - Individual Idler
$494.99 $621.99 Save $127.00
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Part Number

304-1878
Product Type Idler

Fitment

Caterpillar: 259B3, 259D, 259D3, 279C, 279C2, 279D, 279D3, 289C, 289C-2, 289D, 289D3, 299C, 299D, 299D3

Application

Equipment Type Compact Track Loader
Function Helps guide track movement and support alignment during compact track loader travel, turning, and loading work.

Trust & Assurance

12-Month Warranty
Free Shipping in the USA
Proven Quality
Trusted by Contractors

Same machine series may use different undercarriage parts. Please confirm 304-1878 matches your existing roller before ordering.

Product Description

  • This aftermarket replacement front idler is designed for compatible Caterpillar compact track loader models and undercarriage applications.
  • This idler helps maintain proper track tension and alignment, supporting smooth track movement during daily operation.
  • Built from high-strength steel, this replacement idler helps support stable machine handling and reliable track performance.
  • Reference part number 304-1878 can be used to confirm replacement compatibility with your existing idler assembly.
  • Fits Caterpillar models including 259B3, 259D, 259D3, 279C, 279C2, 279D, 279D3, 289C, 289C-2, 289D, 289D3, 299C, 299D, 299D3. Please verify your machine model and part number before ordering.

Key Features

Direct Replacement Idler: Aftermarket front idler using reference part number 304-1878 for compatible Caterpillar equipment.

Fits Caterpillar Models: Designed for Caterpillar 259D, 279D, 289D, 299D and related compact track loader models. Please confirm part number 304-1878 before ordering.

Supports Track Tension: Helps maintain proper track tension and alignment, reducing uneven track wear and supporting stable undercarriage performance.

Durable Steel Construction: Built from high-strength steel for demanding jobsite conditions, heavy-duty use, and long service life.

Smooth Track Operation: Designed to support steady track movement, improved machine control, and reliable performance during daily operation.

Warranty

12-Month Warranty.
Every rubber track, roller, sprocket, and idler we sell is backed by a 12-month warranty.
If it doesn’t hold up, we make it right.

Shipping

Free Shipping in the USA

We keep inventory stocked and offer fast nationwide shipping, often same or next business day, from strategically located warehouses.

Free Shipping in the USA

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12-Month Warranty

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