Kobelco SK45SR Tracks & Parts

High-grade Kobelco SK45SR rubber tracks and undercarriage parts, engineered to ment in 400x72.5Nx74. Heavy-duty construction for digging, grading and trenching — every order ships free.

Kobelco SK45SR Track Specs

  • Track size: 400x72.5Nx74
  • Width: 400 mm
  • Pitch: 72.5 mm
  • Links: 74
  • Guide: Offset guide

Choose Your Tread

  • Directional — Mini-excavator standard — angled lugs for digging, grading and trenching traction.

Kobelco SK45SR Undercarriage Lineup

Every wear part for the Kobelco SK45SR undercarriage, fit-verified and ready to ship:

Also Fits These Machines

These machines run the same 400x72.5Nx74 track, so this fitment crosses over:

Built to Outlast OEM

  • 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 Kobelco SK45SR 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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Find Your Track Call TrackTECH
Kobelco SK45SR Rubber Tracks | 400x74x72

Track sizes

Rubber tracks

  • Bridgestone 400x72.5Nx74 MX rubber track — hero
    Kobelco SK45SR 400x72.5Nx74 Bridgestone 400x72.5Nx74 MX
    • Bridgestone | 400x72.5Nx74

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Which tread fits Kobelco SK45SR?

Pick a tread for your jobsite — then buy above.
+ Recommended surface- Not the primary use— Application dependent
PatternBest UseKey TraitsRoadClayGravelMulchMudTurfAction
M MxMachine-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
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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.

Kobelco SK45SR fitment data

Fitment & Part Numbers

Track Size400x72.5Nx74

Related Collections

Frequently Asked Questions

Common fitment, shipping, and rubber track replacement questions

Will this track fit my Kobelco SK45SR?
Yes — this track is matched to the Kobelco SK45SR by size and tread pattern.
Do you stock undercarriage parts for the Kobelco SK45SR?
Yes — along with the rubber track we carry top rollers for the Kobelco SK45SR, so you can refresh the whole undercarriage in one order.
Do Kobelco SK45SR tracks sell in pairs?
Tracks are priced individually; a full machine needs two. Most owners replace both at once so wear stays even.