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.
ENGINEERED FOR THE JOBSITE
Built Tough
Heavy-duty replacement rubber tracks engineered for compact track loaders, tracked skid steers, mini excavators, mini track loaders, and demanding construction equipment applications.
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100% Virgin Rubber
Engineered to resist chunking, tearing, and cutting in harsh, abrasive environments.
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Continuous Steel Cords
Jointless internal cable architecture eliminates structural weak points and maximizes overall tensile strength.
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Drop-Forged Links
Precision heat-treated guide lugs ensure exact sprocket engagement and prevent de-tracking under heavy side-loads.
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Corrosion Resistant
The internal steel framework is fully encapsulated to prevent oxidation, rust, and moisture penetration.
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Reinforced Sidewalls
Extra-thick vulcanized rubber and tapered edge profiles protect against curb slashing and lateral impacts from jobsite debris.
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Low-Vibration Tread
Optimized lug spacing and pitch geometry absorb shock, reducing undercarriage wear and minimizing cabin vibration.
Frequently Asked Questions
Fitment, availability, fulfillment, and support for this product
What size rubber tracks fit the 400x72.5Nx72?
What sprocket fits the 400x72.5Nx72?
What bottom rollers fit the 400x72.5Nx72?
What front idler fits the 400x72.5Nx72?
What other machines use the 400x72.5Nx72 rubber track?
Should I replace undercarriage parts when installing new 400x72.5Nx72 tracks?
How do I confirm this product fits the 400x72.5Nx72?
How fast does TrackTECH ship 400x72.5Nx72 parts?
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