CAT 303.5D CR Rubber Tracks

Outfit your CAT 303.5DCR 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 303.5DCR — Track Spec Sheet

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

Tread Patterns

  • Directional — The excavation specialist — directional tread optimized for digging and slope work.

CAT 303.5DCR Undercarriage Lineup

Pair your tracks with the right undercarriage parts for the CAT 303.5DCR:

Also Fits These Machines

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

What You Get with TrackTECH

  • 24-month warranty on every track — confidence that outlasts the competition.
  • Precision OEM alignment — a reinforced roller path keeps running smooth and vibration low.
  • 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.

Ready to roll? Buy your CAT 303.5DCR undercarriage online now — or reach a track specialist at (850) 816-7898. Use the Track Finder to confirm the right build.

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CAT 303.5DCR mini excavator

Track sizes

Heavy-Duty Rubber Tracks for 303.5D CR

  • 300x52.5Wx90 Heavy Duty Rubber Track | Non-Directional
    CAT 303.5D 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 303.5DCR 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 303.5DCR?
The CAT 303.5DCR is cataloged with 300x52.5Wx90 rubber tracks in the current TrackTECH storefront data. The size format is width × pitch × links.
What are the best rubber tracks for the CAT 303.5DCR?
The best CAT 303.5DCR 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 303.5DCR?
TrackTECH offers new heavy-duty replacement tracks for the CAT 303.5DCR 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 303.5DCR rubber tracks cost?
Price depends on track size, tread pattern and whether you are replacing one track or a pair. Compare the current CAT 303.5DCR options and live pricing on TrackTECH rather than relying on a generic model estimate.
Should I replace worn tracks on a used CAT 303.5DCR?
If a used CAT 303.5DCR 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 303.5DCR?
Yes. The current TrackTECH machine record lists these available part families for the CAT 303.5DCR: Tracks, Sprockets, Idlers, Rollers. Availability and pricing are shown with the corresponding products.