Xastro Deck Wheels for Kubota ZD321 ZD326 — 4pc set for 60"/72" decks, 5" OD 5/8" bore

Xastro deck wheels replace Kubota OEM 14473 / K5668-42100 wheels to restore proper deck height and prevent scalping on ZD321 and ZD326 mowers with 60" or 72" cutting decks.

These four replacement deck wheels are built to match the fit and dimensions required by Kubota zero-turn commercial mowers. Designed with a centered bore and a 3 5/8" hub, each wheel measures a 5" outer diameter and accepts 5/8" mounting shafts — matching key OEM specs so installation is straightforward. The kit is intended for owners who need durable, wear-resistant support wheels that help the mowing deck track evenly over uneven turf.

How do these wheels fit my Kubota ZD321 or ZD326 deck?

The wheels are manufactured to the OEM dimensions listed for Kubota part numbers 14473, K5668-42100, K5647-42100 and K5647-42103. They fit both 60" and 72" deck assemblies that use a 5/8" center shaft and a hub diameter close to 3 5/8". Installation typically swaps the worn wheel for the new one without modification.

• OEM references included for easy cross-checking before purchase.
• Centered bore: 5/8" to match factory shaft sizes.
• Hub diameter: 3 5/8" enabling proper seating on the spindle.
• Outer diameter: 5" for correct ride height and ground clearance.

What materials and durability can I expect from the Xastro wheels?

Xastro builds these deck wheels from wear-resistant components that focus on longevity under repetitive turf contact. The construction reduces flat-spotting and maintains roundness longer than inexpensive aftermarket options. Properly installed, they will support heavy daily use on commercial and residential properties.

• Reinforced wheel composition resists abrasion and chipping.
• Precision molding preserves diameter and roundness under load.
• Seated hub design minimizes wobble and premature wear.

Will swapping these wheels affect mowing height or deck performance?

Replacing worn or uneven deck wheels helps keep the deck level and reduces scalping, which can damage turf. Because the wheels match factory outer diameter and hub measurements, they maintain the intended cutting height and deck geometry when installed in sets. It's recommended to replace all four wheels together for the most consistent performance.

• Consistent 5" outer diameter preserves factory deck height.
• Balanced set reduces side-to-side tilt and scuffing.
• Use as a full set (4 pieces) for even wear and performance.

How do I confirm these are the right replacements before ordering?

Verify your mower's OEM part number or measure the existing wheel dimensions. Match the listed part numbers (14473, K5668-42100, K5647-42100, K5647-42103) and confirm the bore and hub sizes: 5/8" centered bore, 3 5/8" hub, 5" outer diameter. If you’re unsure, compare the old wheel measurements or consult your mower’s parts diagram.

• Compare OEM numbers printed on the original wheel or parts list.
• Measure the shaft diameter and wheel outer diameter before buying.
• Contact support with your model and measurements for verification.

Who is this for: Landscapers, groundskeepers and homeowners operating Kubota ZD321 or ZD326 zero-turn mowers with 60" or 72" decks who need a reliable four-wheel replacement to prevent deck scalping and restore consistent cutting height. Choose this kit when you want OEM-compatible sizing, durable materials, and a straightforward swap to return your mower to proper deck tracking.