CAT 303ECR Rubber Tracks - 300x52.5Wx84 Fitment Guide
Shop verified CAT 303ECR rubber tracks in the 300x52.5Wx84 fitment family, with tread options for hard surfaces, turf-sensitive work, mud, snow, and mixed construction jobsites.
Fitment answer: the CAT 303ECR is verified in TrackTECH's fitment graph for the 300x52.5Wx84 fitment family. Confirm the stamped size on your current track before ordering, especially if the machine has a serial break or factory undercarriage option.
Shop CAT 303ECR rubber tracks | Call fitment support: (850) 816-7898
CAT 303ECR Track Specs
| Machine | CAT 303ECR |
|---|---|
| Catalog track size | 300x52.5Wx84 |
| Width | 300 mm ( 12" ) |
| Fitment status | Verified. Confirm stamped track size before shipping. |
In-stock tracks ordered before 12PM CT ship same day with free LTL freight. 24-month / 1,500-hour warranty.
CAT 303ECR Rubber Track FAQs
What products can I shop for my Caterpillar 303ECR?
Machine-based rubber tracks, undercarriage parts, buckets, grapples, forks, and brush cutters for the Caterpillar 303ECR.
Do these parts fit the Caterpillar 303ECR?
This page is built around Caterpillar 303ECR fitment from the model record, supplier part data, and machine-class attachment compatibility. Verify by serial number for serial-specific parts.
How fast does shipping take?
Same-day shipping on orders before 12pm CT. Most orders deliver in 1–3 business days. Tracking emailed at pickup.
What is the warranty?
All Heavy Iron Supply rubber tracks carry a 24-month manufacturer warranty against defects — not prorated.
TrackTECH — rubber track & undercarriage specialists · Destin, FL · (850) 816-7898
24-month / 1,500-hour warranty · Free LTL freight (lower 48) · Same-day dispatch before 12PM CT · Verified fitment on every order