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    • Hitachi ZX80SB Bottom Roller | Part #RD809-21703
    • Hitachi ZX80SB Bottom Roller | Part #RD809-21703 - close up
    • Hitachi ZX80SB Bottom Roller | Part #RD809-21703 - left side
    • Hitachi ZX80SB Bottom Roller | Part #RD809-21703 - internal guide lugs

    Hitachi ZX80SB Bottom Roller | Part #RD809-21703

    Free Shipping Lower 48
    Sale Price $190.00Regular Price $197.60
    In stock
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    Hitachi ZX80SB Bottom Roller | Part #RD809-21703This replacement bottom roller is cataloged for Hitachi ZX80SB and is intended for service in the tracked undercarriage. The bottom roller carries machine load...
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    PRODUCT SPECIFICATIONS

    Technical Dimensions

    Part # RD809-21703
    Weight 27.17 lbs

    Construction & Features

    DurabilityHeavy duty only
    FitmentDirect OEM match
    ConstructionDrop forged steel
    ConstructionHeat-treated hardening

    Frequently Asked Questions

    Fitment, availability, fulfillment, and support for this product

    What bottom roller / track roller fits the Hitachi ZX80SB?

    This bottom roller / track roller is listed for the Hitachi ZX80SB and matches OEM Part #RD809-21703. Before ordering, compare your machine make, model, serial number, and existing part number to confirm the correct undercarriage position and fitment.

    Should I inspect the full undercarriage before replacing this Hitachi ZX80SB part?

    Yes. Sprockets, idlers, rollers, and rubber tracks wear together as a system. Before replacing this part for the Hitachi ZX80SB, inspect the full undercarriage for uneven wear, bearing play, hooked sprocket teeth, and track tension issues.

    How do I confirm this product fits the Hitachi ZX80SB?

    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 <a href="/pages/rubber-track-finder">TrackTECH Track Finder</a> or call <a href="tel:8508167898">(850) 816-7898</a> before ordering.

    How fast does TrackTECH ship Hitachi ZX80SB 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 <a href="/pages/shipping">TrackTECH shipping information</a> or contact us before ordering if you need priority freight options.

    What machines is this bottom roller listed for?

    Current compatible equipment listed in the TrackTECH catalog includes JCB JZ 70, Kubota KX080-3, Kubota KX080-4.

    Where can I buy this bottom roller?

    TrackTECH supplies new replacement bottom roller options with low direct pricing, free shipping and fast nationwide delivery. Current price and availability are shown on the product page.