CAT 303.5DCR Tracks & Parts

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.

Free US Shipping100% Fit GuaranteePremium OEM Quality

Find Your Track Call TrackTECH
CAT 303.5DCR Tracks & Parts — TrackTECH rubber tracks & undercarriage parts

Track sizes

Rubber tracks

  • heavy duty 300x52 5wx90 directional 01 hero
    CAT 303.5D CR 300x52.5Wx90 Non-Directional
    • Heavy Duty | 300x52.5Wx90
    $1,109.00$1,009.00

    In stock

    Add to quote

Which tread fits CAT 303-5DCR?

Pick a tread for your jobsite — then buy above.
+ Recommended surface- Not the primary use— Application dependent
PatternBest UseKey TraitsRoadClayGravelMulchMudTurfAction
N NdMachine-matched track option Available for this machine from the governed TrackTECH fitment record. Review the track option above for current price and availability.
  • Governed Fitment
  • Machine-Matched
  • Current Commerce Data
——————View

Built for Heavy Duty Use

Heavy-Duty Track Construction

Setting a new standard in heavy-duty performance. Find your exact fit, reduce avoidable downtime, and keep your machine working — not waiting.

  • Brand New

    New belts — not remills or retreads.

  • Heavy-Duty Steel Guides

    Precision-formed internal steel components support consistent sprocket engagement.

  • Continuous Steel Cord

    Continuous internal steel reinforcement supports belt strength under repeated load.

  • Premium Wear-Resistant Rubber

    Heavy-duty rubber construction built for abrasion and daily commercial use.

  • Precision Fitment

    Governed width, pitch, and link count for the machine application.

  • High-Traction, Low-Vibration

    Tread patterns matched to the jobsite.

CAT 303.5DCR fitment data

Fitment & Part Numbers

Track Size300x52.5Wx90
Sprocket264-5371
Idler267-4829
Roller266-8793
About CAT 303.5DCR Tracks & Parts

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

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Frequently Asked Questions

Common fitment, shipping, and rubber track replacement questions

Will this track fit my CAT 303.5DCR?
Yes — this track is matched to the CAT 303.5DCR by size and tread pattern.
Directional or block tread — which should I run?
For mixed dirt and gravel, most CAT 303.5DCR owners run a directional (multi-bar) tread for traction and mud release. Block tread wears better on hard surfaces and pavement.
How fast will my track ship?
In-stock tracks ship fast from US warehouses, most within 1–2 business days, with tracking sent as soon as it leaves the dock.
Are these OEM or aftermarket CAT 303.5DCR tracks?
OEM-grade aftermarket tracks built to factory fitment for the CAT 303.5DCR — same dimensions and guide type, continuous steel-cord belt, at a better price than dealer OEM.