Mini Excavator

CAT 303 Mini Ex Tracks

Fits track size: 300x52.5Wx90

Choose your tread pattern. OEM-grade, continuous steel cord, free freight.

24-Month Warranty Free Freight Same-Day Shipping Fleet Discounts
CAT 303 rubber tracks and parts
Machine Performance
  • Operating Weight7326 lbs
  • Horsepower26.0 HP
  • Track Size300x52.5Wx90
Hydraulics & Lift
  • Standard Flow13.15 GPM
OEM Reference Parts

    CAT 303 Mini Ex Tracks

    Pick your track size (OEM fit: 300x52.5Wx90), then choose a tread pattern. OEM-grade continuous steel cord · free freight.

    CAT 303 Mini Ex · 300x52.5Wx90

    MX Pattern

    Heavy-Duty Rubber Track

    MX Pattern

    Track Size: 300x52.5Wx90

    $1,036.00$1,166.00Save $130.00

    View Track
    Shop all CAT 303 rubber tracks →

    CAT 303 Mini Ex Attachments

    Attachments matched to the CAT 303. Popular buckets, grapples, forks, and brush cutters — confirm mount and hydraulics before ordering.

    78" Heavy Duty Low Profile Bucket

    Attachment

    78" Heavy Duty Low Profile Bucket

    $1,299.00

    View Attachment
    Standard Grapple Bucket

    Attachment

    Standard Grapple Bucket

    $2,799.00

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    Heavy-Duty Skid Steer Pallet Forks & Frame

    Attachment

    Heavy-Duty Skid Steer Pallet Forks & Frame

    $1,972.00

    View Attachment
    Shop all attachments →

    CAT 303 FAQs

    Common questions about CAT 303 tracks, undercarriage parts, and attachments.

    What size rubber tracks fit the CAT 303?
    The CAT 303 commonly uses track size 300x52.5Wx90. Verify against your machine's existing track sidewall marking or OEM manual before ordering.
    Are Heavy Iron tracks guaranteed to fit my CAT 303?
    Yes. Every rubber track order requires you to confirm make and model at checkout. We cross-reference OEM specs and only ship when fitment is verified. Wrong-fit claims are covered under our fitment guarantee.
    How fast do CAT 303 tracks ship?
    Orders placed before 12PM CT ship the same business day. Rubber tracks ship free via LTL freight to the contiguous United States (48 states).
    What tread patterns are available for the CAT 303?
    We stock 1+ tread option for the CAT 303 — including C-Block, multi-bar, zig-zag, and directional patterns. See the tracks section above for live pricing.
    Do you sell undercarriage parts for the CAT 303?
    Yes — sprockets, idlers, rollers, and related steel undercarriage components are listed on this page when in stock. Need an OEM part number matched? Call (850) 816-7898 with your serial number.

    Ready to outfit your CAT 303?

    Need a part not listed? We source OEM-cross undercarriage and attachments for every major brand. Free freight and fleet pricing.

    Request a Free Quote
    Or call us at: (850) 816-7898