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Yanmar YB121 Rubber Tracks | UltraTrack
The Yanmar YB121 Rubber Track is an OEM-compatible 230x72x43 rubber track engineered for Yanmar YB121 compact track loaders. Built to Yanmar factory specifications, this tread rubber track delivers reliable grip, reduced ground pressure, and consistent performance across construction sites, agricultural fields, and mixed-terrain jobsites.
Ultratrack supplies OEM-spec Yanmar rubber tracks with guaranteed fitment verified against your exact Yanmar model. Every track ships free to the contiguous United States with same-day processing available. Backed by a 12-month manufacturer's warranty -- order with confidence.
* Notes: All sizes (variants) displayed with your make and model will fit. | Call us if you have any questions. 866-516-TIRE (8473)
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Recommended Add-ons for Yanmar YB121
Rollers, idlers, and undercarriage components for the Yanmar YB121 — commonly replaced alongside the tracks.
The Yanmar YB121 Rubber Track is an OEM-compatible 230x72x43 rubber track engineered for Yanmar YB121 compact track loaders. Built to Yanmar factory specifications, this tread rubber track delivers reliable grip, reduced ground pressure, and consistent performance across construction sites, agricultural fields, and mixed-terrain jobsites.
Ultratrack supplies OEM-spec Yanmar rubber tracks with guaranteed fitment verified against your exact Yanmar model. Every track ships free to the contiguous United States with same-day processing available. Backed by a 12-month manufacturer's warranty -- order with confidence.
The UltraTrack Advantage — Yanmar YB121
Built for Your Yanmar YB121
Our Yanmar YB121 replacement tracks are manufactured with 30% more rubber by volume than standard tracks — longer wear life, fewer replacements, less downtime.
- Continuous Steel Cording (CSC) — Single continuously wound cable forms the backbone, providing maximum tensile strength across the full track width.
- Vulcanized High-Tensile Cables — Encapsulated cables flex under load while shielding the core from job-site hazards.
- Precision Drop-Forged Steel Links — Engage cleanly with your Yanmar YB121 sprocket for smooth power transfer and reduced undercarriage wear.
- 100% Virgin Rubber Compound — Acid-washed steel cords bonded through multi-stage vulcanization create a bond that resists delamination under heavy, sustained loads.
Track Specifications — Yanmar YB121
| Application | Yanmar YB121 Replacement Rubber Track |
| Condition | New |
| Sold As | Individual track — order 2 for a full set |
| Construction | CSC with drop-forged steel links |
| Rubber Compound | 100% virgin, ~30% more volume than standard |
| Warranty | 30-Month manufacturer warranty |
| Shipping | Free 1–3 day from 13+ warehouses nationwide |
Yanmar YB121 Undercarriage Compatibility
Precision-engineered to work with every component of your Yanmar YB121 undercarriage. Regular tension checks and component inspections extend track life significantly.
- Sprocket — Engages track links to drive the machine forward.
- Front Idler — Guides the track and maintains correct operating tension.
- Bottom Rollers — Carry the machine's weight for smooth, stable travel.
- Top Rollers — Support the returning upper track run, preventing sag.
Get Replacement Tracks for Your Yanmar YB121 Today
Free shipping from 13+ warehouses · Same-day processing · 30-month warranty. Select your tread type and width above.
Choose Your Tracks ↑Product Specifications
| SKU | UT-YANMAR-YB121-230X72X43-D1 |
| Brand | UltraTrack |
| Condition | New |
Undercarriage Parts for Yanmar YB121
Rollers, idlers, sprockets and undercarriage components compatible with the Yanmar YB121 — commonly replaced alongside the tracks.
Compatible Parts & Alternatives
Talk to a Track Expert
Fitment questions come up all the time. If you're stuck on sizing, model numbers, or tread choice, our support team can guide you to the right match fast.