Komatsu PC40MR Tracks & Parts

Keep your Komatsu PC40MR in the dirt with precision-fit 400x72.5Nx72 tracks and matched undercarriage parts. OEM-quality build, 24-month warranty, free freight.

Tread Options for the Komatsu PC40MR

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

Complete the Komatsu PC40MR Rebuild

Pair your tracks with the right undercarriage parts for the Komatsu PC40MR:

Also Fits These Machines

Looking for another machine? The 400x72.5Nx72 size also fits:

The TrackTECH Difference

  • Drop-forged steel links for strength where the track meets the drive system.
  • 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.
  • Precision OEM alignment — a reinforced roller path keeps running smooth and vibration low.

Upgrade your Komatsu PC40MR today. Order online for free freight, or call (850) 816-7898. Need a hand matching size and guide? Try the Track Finder.

Free US Shipping100% Fit GuaranteePremium OEM Quality

Find Your Track Call TrackTECH
Komatsu PC40MR Tracks & Parts — TrackTECH rubber tracks & undercarriage parts

Track sizes

Rubber tracks

  • heavy duty 400x72 5nx70 directional 01 hero
    Komatsu PC40MR 400x72.5Kx72 All-Terrain
    • Heavy Duty | 400x72.5Kx72
    • All-Terrain Grip
    • Smooth Ride
    • Cut Resistant
    $1,599.00

    In stock

    Add to quote

Which tread fits Komatsu PC40MR?

Pick a tread for your jobsite — then buy above.
+ Recommended surface- Not the primary use— Application dependent
PatternBest UseKey TraitsRoadClayGravelMulchMudTurfAction
A All-terrainMachine-matched track option Available for this machine from the governed TrackTECH fitment record. Review the track option above for current price and availability.
  • Governed Fitment
  • Machine-Matched
  • Current Commerce Data
——————View

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.

Komatsu PC40MR fitment data

Fitment & Part Numbers

Track Size400x72.5Nx72
Idler9237507
About Komatsu PC40MR Tracks & Parts

Keep your Komatsu PC40MR in the dirt with precision-fit 400x72.5Nx72 tracks and matched undercarriage parts. OEM-quality build, 24-month warranty, free freight. Tread Options for the Komatsu PC40MR Directional — The excavation specialist — directional tread optimized for digging and slope work. Complete the Komatsu PC40MR Rebuild Pair your tracks with the right undercarriage parts for the Komatsu PC40MR : Front Idler — OEM Part #9237507 Top Roller — OEM Part #9239529 Also Fit

Related Collections

Frequently Asked Questions

Common fitment, shipping, and rubber track replacement questions

Will this track fit my Komatsu PC40MR?
Yes — this track is matched to the Komatsu PC40MR by size and tread pattern.
Do you stock undercarriage parts for the Komatsu PC40MR?
Yes — along with the rubber track we carry front idlers, top rollers for the Komatsu PC40MR, so you can refresh the whole undercarriage in one order.
Do Komatsu PC40MR tracks sell in pairs?
Tracks are priced individually; a full machine needs two. Most owners replace both at once so wear stays even.