Caterpillar 303 Rubber Tracks

300x52.5x84 Directional Rubber Track for Caterpillar 303

RT2314 is a 300 mm wide directional rubber track with 52.5 mm pitch and 84 links for the CAT applications listed below. Confirm the exact model, year, complete track markings, guide configuration, and machine serial number before ordering because undercarriage configurations can vary.

Rubber Track Specifications

View RT2314 product details and request pricing.

Verified CAT Applications

Caterpillar: MM35, MM35A, MM35B, MM35T, MM40SR, 303.5, 303E CR, 303 CR first generation (before 2006), and 303 CR second generation (after 2018). Mitsubishi (CAT): MM35T and MM40SR.

This list does not imply that every Caterpillar 303 configuration fits. Serial-number ranges, model years, replacement undercarriages, and guide configurations can change the required track.

Confirm Fitment Before Ordering

Verify the 300 mm width, 52.5 mm pitch, 84-link count, directional tread, and guide configuration marked on the current track. Provide the exact Caterpillar model and serial number. If the markings are worn, send photos through our Part Finder Request. Browse the rubber tracks hub or shop excavator rubber tracks.

Frequently Asked Questions

What rubber-track size fits a CAT 303?

The listed CAT applications use the 300x52.5x84 directional RT2314 track. For Caterpillar 303 CR, the supplied fitments are the first generation before 2006 and the second generation after 2018; also listed are 303.5 and 303E CR. Verify the exact machine before ordering.

What SKU should I request?

Request Construction Parts SKU RT2314.

Why must I verify the serial number?

Serial-number breaks and replacement undercarriages can change the required track within a model family.

How should a directional track be installed?

Install the tread in the correct travel orientation and confirm the direction before operating the machine.

View the 300x52.5x84 rubber-track size page