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Komatsu PC78UU-6 Rubber Tracks | UltraTrack
The Komatsu PC78UU-6 Rubber Tracks is an OEM-compatible 450x83.5x74, 450x83.5x74K rubber tracks engineered for Komatsu PC78UU-6 compact track loaders. Built to Komatsu factory specifications, this tread rubber tracks delivers reliable grip, reduced ground pressure, and consistent performance across construction sites, agricultural fields, and mixed-terrain jobsites.
Ultratrack supplies OEM-spec Komatsu rubber tracks with guaranteed fitment verified against your exact Komatsu 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 Komatsu PC78UU-6
Rollers, idlers, and undercarriage components for the Komatsu PC78UU-6 — commonly replaced alongside the tracks.
The Komatsu PC78UU-6 Rubber Tracks is an OEM-compatible 450x83.5x74, 450x83.5x74K rubber tracks engineered for Komatsu PC78UU-6 compact track loaders. Built to Komatsu factory specifications, this tread rubber tracks delivers reliable grip, reduced ground pressure, and consistent performance across construction sites, agricultural fields, and mixed-terrain jobsites.
Ultratrack supplies OEM-spec Komatsu rubber tracks with guaranteed fitment verified against your exact Komatsu 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 — Komatsu PC78UU-6
Built for Your Komatsu PC78UU-6
Our Komatsu PC78UU-6 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 Komatsu PC78UU-6 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 — Komatsu PC78UU-6
| Application | Komatsu PC78UU-6 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 |
Komatsu PC78UU-6 Undercarriage Compatibility
Precision-engineered to work with every component of your Komatsu PC78UU-6 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 Komatsu PC78UU-6 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-KOMATSU-PC78UU6-450X83.5X74-V-LUG |
| Brand | UltraTrack |
| Condition | New |
Undercarriage Parts for Komatsu PC78UU-6
Rollers, idlers, sprockets and undercarriage components compatible with the Komatsu PC78UU-6 — 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.