High-grade Hitachi ZX50U rubber tracks and undercarriage parts, engineered to OEM fitment in 400x72.5Wx72. Heavy-duty construction for digging, grading and trenching — every order ships free.
Tread Patterns
- Directional — Angled directional lugs purpose-built for excavation, grading and trenching.
Hitachi ZX50U Undercarriage Parts
Complete the rebuild with matched-fit components for the Hitachi ZX50U:
- Top Roller — OEM Part #1180-9221
- Bottom Roller — OEM Part #4357785
Tracks That Cross Over
The 400x72.5Wx72 track size is shared across these models — same track, verified cross-fit:
- Case CK50
- Case CK52
- Cat 304CR
- Cat 305.5
- Hitachi EX40
- Hitachi EX40-2
- Hitachi EX40U
- Hitachi EX45-2
- IHI 40NX
- IHI 45N
Built to Outlast OEM
- Endless high-tensile cables — single-cure construction with no weak splice point.
- 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.
Order your Hitachi ZX50U tracks and parts today, or call (850) 816-7898 for build help. Not sure on size or guide? The Track Finder has you covered.
Direct Replacement Rubber Tracks for the Hitachi ZX50U
Direct replacement rubber tracks for the Hitachi ZX50U are built for heavy-duty compact equipment applications where traction, stability, and uptime matter. These tracks are designed for dependable grip, smooth travel, and consistent performance across dirt, clay, gravel, demolition debris, utility work, grading, land clearing, excavation, and mixed jobsite terrain.
Heavy-Duty Construction for Daily Work
Premium virgin rubber compounds help resist tearing, chunking, cracking, dry rot, and premature tread wear under demanding field conditions. Continuous steel cord reinforcement adds internal strength, helps reduce stretching, and supports stable track performance through repeated turning, travel, and loading.
OEM Fit Guarantee
Machine-specific sizing, steel link spacing, and guide lug geometry are built for proper undercarriage engagement on the Hitachi ZX50U. Precision-aligned fitment helps support smooth travel, stable tracking, reduced vibration, and reliable sprocket contact.
Built to Protect the Undercarriage System
A well-built rubber track helps improve machine control while limiting unnecessary stress on rollers, idlers, and sprockets. For contractors running Hitachi equipment, that means better ride quality, stronger traction, less downtime, and better value over the life of the track.

