CAT 304E CR Rubber Tracks

Outfit your CAT 304ECR mini excavator with heavy-duty replacement rubber tracks built to OEM specs in size 300x52.5Wx90, backed by a 24-month warranty and free freight to the lower 48.

CAT 304ECR Track Specs

  • Track size: 300x52.5Wx90
  • Width: 300 mm
  • Pitch: 52.5 mm
  • Links: 90
  • Guide: Wide guide

Tread Patterns

  • Directional — Angled directional lugs purpose-built for excavation, grading and trenching.

CAT 304ECR Undercarriage Lineup

Complete the rebuild with matched-fit components for the CAT 304ECR:

Also Fits These Machines

The 300x52.5Wx90 track size is shared across these models — same track, verified cross-fit:

What You Get with TrackTECH

  • Drop-forged steel links for strength where the track meets the drive system.
  • Endless high-tensile cables — single-cure construction with no weak splice point.
  • Continuous steel cord — up to 40% stronger than typical aftermarket tracks, resisting stretch and de-tracking.
  • Free freight to the lower 48 — every order ships free, with same-day dispatch on in-stock items.

Upgrade your CAT 304ECR today. Order online for free freight, or call (850) 816-7898. Need a hand matching size and guide? Try the Track Finder.

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CAT 304ECR mini excavator

Track sizes

Heavy-Duty Rubber Tracks for 304E CR

  • 300x52.5Wx90 Heavy Duty Rubber Track | Non-Directional
    CAT 304E CR 300x52.5Wx90 300x52.5Wx90
    • Heavy Duty | 300x52.5Wx90
    $1,046.50$1,006.25

    In stock

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  • 100% Virgin Rubber

    Engineered to resist chunking, tearing, and cutting in harsh, abrasive environments.

  • Continuous Steel Cords

    Jointless internal cable architecture eliminates structural weak points and maximizes overall tensile strength.

  • Drop-Forged Links

    Precision heat-treated guide lugs ensure exact sprocket engagement and prevent de-tracking under heavy side-loads.

  • Corrosion Resistant

    The internal steel framework is fully encapsulated to prevent oxidation, rust, and moisture penetration.

  • Reinforced Sidewalls

    Extra-thick vulcanized rubber and tapered edge profiles protect against curb slashing and lateral impacts from jobsite debris.

  • Low-Vibration Tread

    Optimized lug spacing and pitch geometry absorb shock, reducing undercarriage wear and minimizing cabin vibration.

CAT 304ECR fitment data

Machine Performance

Operating Weight11380 lb
Horsepower41 HP

Hydraulics & Lift

Standard Flow20 GPM

Fitment & Part Numbers

Track Size300x52.5Wx90
Sprocket2
Idler2
Roller2

Frequently Asked Questions

Common fitment, shipping, and rubber track replacement questions

What rubber tracks are compatible with the CAT 304ECR?
The CAT 304ECR is cataloged with multiple track configurations: 350x52.5x90, 300x52.5Wx90.
What are the best rubber tracks for the CAT 304ECR?
The best CAT 304ECR track depends on terrain and application. Current tread choices include Directional — mini excavator digging and travel. Compare traction, ride quality, cleanout, ground disturbance and wear for the work you do most.
Where can I buy new tracks for a CAT 304ECR?
TrackTECH offers new heavy-duty replacement tracks for the CAT 304ECR with low direct pricing, free shipping, fast nationwide delivery and 24-month rubber-track warranty protection. Current prices and available tread options are shown on the page.
How much do CAT 304ECR rubber tracks cost?
Price depends on track size, tread pattern and whether you are replacing one track or a pair. Compare the current CAT 304ECR options and live pricing on TrackTECH rather than relying on a generic model estimate.
Should I replace worn tracks on a used CAT 304ECR?
If a used CAT 304ECR has worn, cracked or damaged tracks, replacement can improve traction, ride quality, job readiness and how the machine presents at resale. Inspect the undercarriage condition at the same time so new tracks are not being installed over obviously worn components.
Can I buy undercarriage parts for the CAT 304ECR?
Yes. The current TrackTECH machine record lists these available part families for the CAT 304ECR: Tracks, Sprockets, Idlers, Rollers. Availability and pricing are shown with the corresponding products.