Kubota KX121-3SS Tracks & Parts

High-grade Kubota KX121-3SS rubber tracks and undercarriage parts, engineered to ment in . Heavy-duty construction for digging, grading and trenching — every order ships free.

Choose Your Tread

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

Matched Undercarriage Components

Every wear part for the Kubota KX121-3SS undercarriage, fit-verified and ready to ship:

Bottom Roller — OEM Part #RD118-21700

The TrackTECH Difference

Free freight to the lower 48 — every order ships free, with same-day dispatch on in-stock items.
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.
Drop-forged steel links for strength where the track meets the drive system.

Ready to roll? Buy your Kubota KX121-3SS 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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Kubota KX121-3SS Tracks & Parts — TrackTECH rubber tracks & undercarriage parts

Track sizes

350x54.5x86

Rubber tracks

Kubota KX121-3SS 350x54.5Kx86 Non-Directional
- Heavy Duty | 350x54.5Kx86
$1,521.45$1,319.00
In stock

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Which tread fits Kubota KX121-3SS?

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
N NdMachine-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.

Kubota KX121-3SS fitment data

Fitment & Part Numbers

Track Size	350x54.5x86
Roller	RD118-21700

Related Collections

Will this track fit my Kubota KX121-3SS?

Yes — this track is matched to the Kubota KX121-3SS by size and tread pattern.

How long do Kubota KX121-3SS rubber tracks last?

Most rubber tracks last 1,200–1,600 operating hours depending on terrain, alignment, and tension. Keeping tracks tensioned and clearing debris daily extends life.

Directional or block tread — which should I run?

For mixed dirt and gravel, most Kubota KX121-3SS 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 Kubota KX121-3SS tracks?

OEM-grade aftermarket tracks built to factory fitment for the Kubota KX121-3SS — same dimensions and guide type, continuous steel-cord belt, at a better price than dealer OEM.