The “Golden Partner” for Caterpillar Mini Excavators – 266-8794 Carrier Roller Assembly Debuts

August 11, 2025 at 13:36 PM EDT

In the world of Caterpillar mini excavators, there’s a small but crucial component that holds the key to overall performance: the top carrier roller. Now, the aftermarket replacement 266-8794 carrier roller assembly, meticulously crafted for multiple Caterpillar mini excavator models, is here to breathe new life into your machine!

266-8794 Carrier Roller

I. Super Compatibility: Covers Multiple Models

Tired of struggling to find a suitable top carrier roller for your Caterpillar mini excavator? Worry no more – the 266-8794 carrier roller assembly is your solution!It precisely fits up to 15 popular models, including:

Caterpillar 303 CCR®, 303ECR®, 303.5C®, 303.5 CCR®

303.5D®, 303.5E®, 303.5ECR®, 303.5E2CR®

304E®, 304ECR®, 304DCR®, 303.5CCR®

303.5DCR®, 304E2CR®, 303CCR®

Each of these models requires one carrier roller per side. Acting as a “stabilizer” at the top of the undercarriage, it firmly supports the track, preventing it from sagging into the track frame. A faulty carrier roller can disrupt track operation, drastically reduce work efficiency, and even cause chain failures. The 266-8794 assembly eliminates these risks at the source.

II. Premium Materials & Outstanding Performance

The 266-8794 carrier roller assembly is forged from high-quality carbon steel, balancing sturdiness and durability:

Wear Resistance: Outperforms ordinary parts in harsh terrains like mountains and gravel, withstanding friction from ground debris and tracks.

Long Lifespan: Lasts 1,000–3,000 working hours under normal use, reducing the hassle and cost of frequent replacements.

Superior Sealing: Blocks dust, moisture, and contaminants while maintaining stable internal oil levels for smooth operation.

III. Matches OEM Part Number: Quality Guaranteed

This assembly directly corresponds to the Caterpillar dealer part number: 266-8794®. There are no known alternate part numbers.

This means it fully replicates the original design, with precise parameters that ensure “OEM-level” stability after installation. No compatibility issues – making equipment maintenance and upgrades simpler and more reliable.

IV. One-Stop Service: Full Undercarriage Parts Available

Our service goes beyond individual components: If you own a Caterpillar 303 CCR, we offer one-stop procurement of full undercarriage parts, including bottom rollers, drive sprockets, idlers, and rubber tracks.

No need to search elsewhere – get all you need in one place, and keep your mini excavator’s undercarriage in top condition for peak performance!

Don’t let worn-out carrier rollers slow down your projects! Choose the 266-8794 carrier roller assembly to power up your Caterpillar mini excavator and boost work efficiency.

Click to inquire for details and exclusive offers – let’s fuel your construction success!

ortune2