Komatsu PC40MR-1 Tracks & Parts

Keep your Komatsu PC40MR-1 in the dirt with precision-fit 400x72.5Nx72 tracks and matched undercarriage parts. OEM-quality build, 24-month warranty, free freight.

Komatsu PC40MR-1 Track Specs

Track size: 400x72.5Nx72
Width: 400 mm
Pitch: 72.5 mm
Links: 72
Guide: Offset guide

Tread Options for the Komatsu PC40MR-1

Directional — Angled directional lugs purpose-built for excavation, grading and trenching.

Matched Undercarriage Components

Every wear part for the Komatsu PC40MR-1 undercarriage, fit-verified and ready to ship:

Front Idler — OEM Part #9237507
Top Roller — OEM Part #9239529
Bottom Roller — OEM Part #9239528

Tracks That Cross Over

The 400x72.5Nx72 track size is shared across these models — same track, verified cross-fit:

Built to Outlast OEM

Continuous steel cord — up to 40% stronger than typical aftermarket tracks, resisting stretch and de-tracking.
Endless high-tensile cables — single-cure construction with no weak splice point.
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.

Ready to roll? Buy your Komatsu PC40MR-1 undercarriage online now — or reach a track specialist at (850) 816-7898. Use the Track Finder to confirm the right build.

Free US Shipping100% Fit GuaranteePremium OEM Quality

Find Your Track Call TrackTECH

Komatsu PC40MR-1 Tracks & Parts — TrackTECH rubber tracks & undercarriage parts

Track sizes

400x72.5Nx72

Rubber tracks

Komatsu PC40MR-1 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-1?

Pick a tread for your jobsite — then buy above.

+ Recommended surface- Not the primary use— Application dependent

Pattern	Best Use	Key Traits	Road	Clay	Gravel	Mulch	Mud	Turf	Action
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-1 fitment data

Fitment & Part Numbers

Track Size	400x72.5Nx72
Idler	9237507
Roller	9239528

Related Collections

Will this track fit my Komatsu PC40MR-1?

Yes — this track is matched to the Komatsu PC40MR-1 by size and tread pattern.

Directional or block tread — which should I run?

For mixed dirt and gravel, most Komatsu PC40MR-1 owners run a directional (multi-bar) tread for traction and mud release. Block tread wears better on hard surfaces and pavement.

Are these OEM or aftermarket Komatsu PC40MR-1 tracks?

OEM-grade aftermarket tracks built to factory fitment for the Komatsu PC40MR-1 — same dimensions and guide type, continuous steel-cord belt, at a better price than dealer OEM.

What warranty comes with Komatsu PC40MR-1 tracks?

Our rubber tracks carry a 24-month warranty against manufacturing defects, with continuous steel cords and wear-resistant compounds. Technicians by trade; heavy duty comes standard.