Kubota U45 Tracks & Parts

Outfit your Kubota U45 mini excavator with heavy-duty replacement rubber tracks built to OEM specs in size 400x72.5Wx72, backed by a 24-month warranty and free freight to the lower 48.

Kubota U45 Track Specs

  • Track size: 400x72.5Wx72
  • Width: 400 mm
  • Pitch: 72.5 mm
  • Links: 72
  • Guide: Wide guide

Choose Your Tread

  • Directional — The excavation specialist — directional tread optimized for digging and slope work.

Complete the Kubota U45 Rebuild

Complete the rebuild with matched-fit components for the Kubota U45:

Tracks That Cross Over

Looking for another machine? The 400x72.5Wx72 size also fits:

The TrackTECH Difference

  • Continuous steel cord — up to 40% stronger than typical aftermarket tracks, resisting stretch and de-tracking.
  • Premium virgin rubber — anti-chunk compound built for long service life in abrasive conditions.
  • Drop-forged steel links for strength where the track meets the drive system.
  • Precision OEM alignment — a reinforced roller path keeps running smooth and vibration low.

Ready to roll? Buy your Kubota U45 undercarriage online now — or reach a track specialist at (850) 816-7898. Use the Track Finder to confirm the right build.

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Kubota U-45 rubber tracks and undercarriage parts

Track sizes

Rubber tracks

  • heavy-duty-400x72-5wx72-staggered-block 1
    Kubota U45 400x72.5Wx72 Staggered Block
    • Heavy Duty | 400x72.5Wx72
    • Smooth Ride
    • Easy Turning
    • Cut Resistant
    $1,599.00

    In stock

    Add to quote

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.

Kubota U45 fitment data

Machine Performance

Operating Weight11850 lb
Horsepower42 HP

Hydraulics & Lift

Standard Flow32 GPM

Fitment & Part Numbers

Track Size400x72.5Wx72
RollerRD411-21703

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Frequently Asked Questions

Common fitment, shipping, and rubber track replacement questions

Will this track fit my Kubota U45?
Yes — this track is matched to the Kubota U45 by size and tread pattern.
Directional or block tread — which should I run?
For mixed dirt and gravel, most Kubota U45 owners run a directional (multi-bar) tread for traction and mud release. Block tread wears better on hard surfaces and pavement.
Do Kubota U45 tracks sell in pairs?
Tracks are priced individually; a full machine needs two. Most owners replace both at once so wear stays even.
Do you stock undercarriage parts for the Kubota U45?
Yes — along with the rubber track we carry bottom rollers for the Kubota U45, so you can refresh the whole undercarriage in one order.