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    • 400x72.5Nx72 Directional Rubber Track - hero view
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    • 400x72.5Nx72 Directional Rubber Track - inside steel cord and guide lugs

    16" Heavy Duty Mini Excavator Tracks (400x72.5Nx72)

    Free Shipping Lower 48
    Sale Price $1,600.00Regular Price $1,664.00
    • In Stock: 4 Available
    • Out of Stock
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    • Ships within 1 business day
    • We ship the lower 48 only.
    Pickup availability
    • Seattle, WA4+ available
    • Woodbine, GA2 available
    • Columbus, OH1 available

    Confirm pickup arrangements before traveling. Quantities are shown separately by location.

    *Estimated LTL transit. Carrier schedules may vary per delivery type.

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    400x72.5Nx72 replacement rubber tracks cover multiple verified machine platforms, including IHI 40G-1, IHI 40GX-2, Komatsu PC45MR-2, Komatsu PC50M-2, Komatsu PC40-7, and Komatsu PC40MR and 21 additional application. This Heavy Duty configuration is built for mini excavators that need dependable traction and controlled travel.

    Maximize Uptime. Lower the Cost Per Hour. A failed track costs more than the replacement—it costs production time. This Heavy Duty replacement track is built for contractors and fleets that need dependable machine availability, predictable wear and useful traction instead of mid-job interruptions.

    TrackTECH Advantage:

    • Continuous Steel Cord: Jointless internal steel cable construction removes splice points and reinforces the track against stretching and high-load stress.
    • Forged Steel Links: Heat-treated internal guide links support consistent sprocket engagement under repeated torque and load cycles.
    • Wear & Ground Contact: Heavy-duty lug geometry balances traction, footprint stability and long-wearing contact across everyday jobsites.
    • Controlled Travel: Tread geometry is selected for predictable forward and reverse movement during digging, trenching and repositioning.

    Confirm the Full Size Match the width, pitch and link count of the 400x72.5Nx72 against your existing track, or use the TrackTECH Rubber Track Finder to confirm fitment for your machine before ordering.

    Track Specifications
    Specification Name Specification Value
    Track Size 400x72.5Nx72
    Width 400 mm (15.75 in)
    Pitch 72.5 mm
    Links 72
    Guide Type N
    Tread Pattern 400x72.5Nx72
    Track Weight 534 lb
    Warranty 24 Months
    Shipping Free Shipping (LTL Freight)
    Design Features
    Specification Name Specification Value
    100% Virgin Rubber CompoundPremium 100% virgin rubber compound for TrackTECH Heavy Duty rubber-track products.
    Continuous Steel Cable (CSC)Jointless continuous steel cable architecture for Heavy Duty rubber-track products.
    Drop-Forged, Heat-Treated Steel LugsDrop-forged, heat-treated steel metal embeds and drive lugs for Heavy Duty rubber-track products.
    Vulcanized Anti-Rust EncapsulationVulcanized anti-rust encapsulation around the internal steel framework.
    Extra-Thick Heavy-Duty Tapered ProfileReinforced extra-thick rubber with a heavy-duty tapered edge and sidewall profile.
    Vibration-Dampening Lug Spacing & Pitch GeometryLug spacing and pitch geometry designed to absorb shock through the track system.
    COMPATIBILITY

    100% Precision Fitment. Guaranteed.

    Make Models
    IHI
    Komatsu
    Shipping, Warranty & Support

    TrackTECH rubber tracks ship free to the lower 48 states on qualifying orders. Fulfillment timing and ship-from location are confirmed from current inventory and the order destination.

    Not sure which size fits your machine? Call our team at (850) 816-7898 — we verify fitment before every order ships.

    Documents

    Frequently Asked Questions

    Fitment, availability, fulfillment, and support for this product

    What size rubber tracks fit the 400x72.5Nx72?
    The 400x72.5Nx72 uses 400x72.5Nx72 rubber tracks (Width: 400mm, Links: 72). This product is built for dependable traction and jobsite durability. Backed by TrackTECH's 100% Guaranteed Machine Fitment and 24-Month Replacement Warranty.
    What sprocket fits the 400x72.5Nx72?
    Matching drive sprocket options for the 400x72.5Nx72 include CAT Drive Sprocket | Part #SP158-4795. When installing new rubber tracks, inspect sprockets for hooked, sharp, or uneven teeth because worn sprockets can shorten track life and damage the drive lugs.
    What bottom rollers fit the 400x72.5Nx72?
    Matching bottom roller or track roller options for the 400x72.5Nx72 include CAT Bottom Roller | Part #TR340-8957. 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 400x72.5Nx72?
    Matching front idler options for the 400x72.5Nx72 include CAT Front Idler | Part #FI241-5973. Front idlers guide the track and help maintain proper tension, so inspect the flange, bearing condition, and wear surface before installing new tracks.
    What other machines use the 400x72.5Nx72 rubber track?
    The 400x72.5Nx72 rubber track size is used across multiple compact machines, including Komatsu PC40-7, Komatsu PC40R-7, Komatsu PC40R-8, Komatsu PC40MR-1, Komatsu PC40R, Komatsu PC45MRX, Komatsu PC45, and Komatsu PC40MRX. Backed by TrackTECH's 100% Guaranteed Machine Fitment and 24-Month Replacement Warranty.
    Should I replace undercarriage parts when installing new 400x72.5Nx72 tracks?
    Yes, inspect sprockets, rollers, and idlers before installing new rubber tracks on the 400x72.5Nx72. Worn undercarriage parts can shorten track life, cause poor alignment, and create uneven wear. Shop matching parts from the linked products above or view all undercarriage parts.
    How do I confirm this product fits the 400x72.5Nx72?
    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 400x72.5Nx72 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.