Kobelco SK45SR-1 Tracks & Parts

Outfit your Kobelco SK45SR-1 mini excavator with heavy-duty replacement rubber tracks built to OEM specs in size 400x72.5Nx74, backed by a 24-month warranty and free freight to the lower 48.

Choose Your Tread

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

Kobelco SK45SR-1 Undercarriage Lineup

Pair your tracks with the right undercarriage parts for the Kobelco SK45SR-1:

Shared-Size Cross-Fit

The 400x72.5Nx74 track size is shared across these models — same track, verified cross-fit:

What You Get with TrackTECH

  • Endless high-tensile cables — single-cure construction with no weak splice point.
  • Precision OEM alignment — a reinforced roller path keeps running smooth and vibration low.
  • Continuous steel cord — up to 40% stronger than typical aftermarket tracks, resisting stretch and de-tracking.
  • Free freight to the lower 48 — every order ships free, with same-day dispatch on in-stock items.

Order your Kobelco SK45SR-1 tracks and parts today, or call (850) 816-7898 for build help. Not sure on size or guide? The Track Finder has you covered.

Free US Shipping100% Fit GuaranteePremium OEM Quality

Find Your Track Call TrackTECH
Kobelco SK45SR-1 Rubber Tracks | 400x74x72 - close up

Track sizes

Rubber tracks

  • Bridgestone 400x72.5Nx74 MX rubber track — hero
    Kobelco SK45SR-1 400x72.5Nx74 Bridgestone 400x72.5Nx74 MX
    • Bridgestone | 400x72.5Nx74

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Which tread fits Kobelco SK45SR-1?

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
——————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.

Kobelco SK45SR-1 fitment data

Fitment & Part Numbers

Track Size400x72.5Nx74

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Frequently Asked Questions

Common fitment, shipping, and rubber track replacement questions

Will this track fit my Kobelco SK45SR-1?
Yes — this track is matched to the Kobelco SK45SR-1 by size and tread pattern.
Directional or block tread — which should I run?
For mixed dirt and gravel, most Kobelco SK45SR-1 owners run a directional (multi-bar) tread for traction and mud release. Block tread wears better on hard surfaces and pavement.
How fast will my track ship?
In-stock tracks ship fast from US warehouses, most within 1–2 business days, with tracking sent as soon as it leaves the dock.
Do Kobelco SK45SR-1 tracks sell in pairs?
Tracks are priced individually; a full machine needs two. Most owners replace both at once so wear stays even.