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    • CAT 303-5CR Sprocket | Part #264-5371
    • CAT 303-5CR Sprocket | Part #264-5371 - close up
    • CAT 303-5CR Sprocket | Part #264-5371 - left side
    • CAT 303-5CR Sprocket | Part #264-5371 - internal guide lugs

    CAT 303-5CR Sprocket | Part #264-5371

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    Regular Price $330.20Call for Price
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    CAT 303-5CR Sprocket | Part #264-5371This heavy-duty aftermarket sprocket, part #264-5371, is cataloged for the CAT 303-5CR mini excavator. The sprocket transfers drive torque into the track through consistent tooth-to-track...
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    PRODUCT SPECIFICATIONS

    Technical Dimensions

    Part # 264-5371
    Tooth Count 23
    Bolt Hole Count 11
    Weight 28.16 lbs

    Construction & Features

    DurabilityHeavy duty only
    FitmentOEM-reference match
    ConstructionDrop forged steel
    FinishHeat-treated hardening

    Fitment Table

    CAT303.5 CR

    Frequently Asked Questions

    Fitment, availability, fulfillment, and support for this product

    What drive sprocket fits the Cat 303-5CR?
    This drive sprocket is listed for the Cat 303-5CR and matches OEM Part #264-5371. Before ordering, compare your machine make, model, serial number, and existing part number to confirm the correct undercarriage position and fitment.
    What bottom rollers fit the Cat 303-5CR?
    Matching bottom roller or track roller options for the Cat 303-5CR include CAT 303.5CR Track Roller | Part #266-8793. Replacing worn rollers before installing new rubber tracks helps keep the undercarriage aligned and reduces uneven wear across the track carcass.
    What front idler fits the Cat 303-5CR?
    Matching front idler options for the Cat 303-5CR include CAT 303.5CR Front Idler | Part #267-4829. Front idlers guide the track and help maintain proper tension, so inspect the flange, bearing condition, and wear surface before installing new tracks.
    What top roller fits the Cat 303-5CR?
    Matching top roller options for the Cat 303-5CR include CAT 303.5CR Carrier Roller | Part #266-8794. Top rollers support the upper track path and should be checked for bearing play, flat spots, and uneven wear during undercarriage service.
    Should I inspect the full undercarriage before replacing this Cat 303-5CR part?
    Yes. Sprockets, idlers, rollers, and rubber tracks wear together as a system. Before replacing this part for the Cat 303-5CR, inspect the full undercarriage for uneven wear, bearing play, hooked sprocket teeth, and track tension issues.
    How do I confirm this product fits the Cat 303-5CR?
    Confirm fitment by checking your machine make, model, serial number, and existing track size or OEM part number. For rubber tracks, verify width, pitch, and link count. For undercarriage parts, compare the part number, bolt pattern, tooth count, and machine position. You can also use the TrackTECH Track Finder or call (850) 816-7898 before ordering.
    How fast does TrackTECH ship Cat 303-5CR parts?
    TrackTECH ships rubber tracks and undercarriage parts quickly across the Lower 48. Heavy items typically ship by freight, while smaller undercarriage parts may ship by parcel depending on warehouse availability. Review TrackTECH shipping information or contact us before ordering if you need priority freight options.
    What machines is this sprocket listed for?
    Current compatible equipment listed in the TrackTECH catalog includes CAT 303.5CCR, CAT 303.5CR, CAT 303.5E CR.