TrackTECH
CAT 5ECR Rubber Track | 300x52.5x90
CAT 5ECR Rubber Track | 300x52.5x90
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Premium Cat 303.5ECR Rubber Track (300×52.5×78W) – Heavy-Duty Performance
The 300×52.5×78W rubber track for the Cat 303.5ECR Mini Excavator is engineered for maximum durability, traction, and uptime in tough applications where downtime isn’t an option. Built with heavy-duty rubber construction built around continuous steel cord technology, this TrackTECH track is designed to handle construction, grading, and site prep while maintaining strong tracking and dependable traction.
Key Features & Benefits
- Heavy-Duty Construction: Continuous steel cord reinforcement keeps the track stable under torque and heavy loads
- Superior Traction: Traction-forward design improves control on loose soil, clay, and uneven ground
- Extended Service Life: Wear-resistant compound helps reduce cracking, chunking, and premature tread loss
- Reduced Vibration: Smoother ride characteristics improve control and reduce fatigue over long days
- OEM-Quality Fit: Precision-built to OEM specifications for Cat 303.5ECR to ensure dependable fit and tracking
Warranty & Support
This rubber track is backed by our 24-month Warranty for Cat 303.5ECR rubber tracks, covering defects in materials and workmanship.
Why Choose TrackTECH?
- Contractor-grade rubber tracks built for real jobsite demands
- Fitment-focused quality control and consistency you can trust
- Knowledgeable support to help you confirm fit and get back to work
- Fast shipping and reliable freight delivery nationwide
Upgrade your Cat 303.5ECR Mini Excavator and get back to work with confidence.
Specifications
24-Month Certified Warranty
Coverage against defects for 2 years or 1,500 hours.
TREAD PATTERN
Directional
Directional tread patterns feature forward-angled lugs optimized for straight-line traction and stability. This design excels in trenching, grading, and precision digging.
View All Tread Patterns →
Verified OEM Fitment
Confirmed compatible with CAT 5ECR. Validated against TrackTECH’s database to match OEM geometry.
- Width 300mm
- Pitch 52.5mm
- Links 90
- Guide W
FREQUENTLY ASKED QUESTIONS
Common questions about CAT 5ECR rubber tracks
The CAT 5ECR uses a 300x52.5x90 rubber track. This is the OEM-specified size ensuring proper fitment with your sprockets and undercarriage. Always verify the size stamp on your existing track before ordering.
All CAT 5ECR replacement rubber tracks include a 24-month Certified Warranty warranty covering defects in materials and workmanship under normal operating conditions. This applies to contractor-grade use on properly maintained undercarriage systems.
The CAT 5ECR is available with Directional tread pattern. C-Block excels on hard surfaces, Zig-Zag provides all-season traction, and Multi-Bar is ideal for turf and landscaping work.
Orders placed before 12 PM CT ship same day from our Georgia warehouse. Standard delivery is 1-3 business days nationwide. Tracks ship on pallets with free curbside delivery to commercial addresses.
Three ways to verify fitment: (1) Check the size stamp on your current track. (2) Use our Track Finder tool with your serial number. (3) Call {{ tt_phone }} and we will confirm compatibility before you order.