(Set of 2) 13x5.00-6 Assemblies - Replacement for Toro/Exmark Lazer Z Part 1-633582

What It Is

This is a set of two 13x5.00-6 tire and wheel assemblies designed as a direct replacement for the front caster wheels on Toro and Exmark Lazer Z zero-turn mowers. They replace OEM part number 1-633582.

Fitment & Compatibility

Before buying, verify your mower uses a 5/8-inch axle diameter and a 6-inch rim. These fit most Toro Lazer Z (including ZX, ZS, and ZHP models) and Exmark Lazer Z (including LZ, LZD, and LZT models) from the early 2000s onward. Check your current wheel’s bolt pattern—these use two 5/16-inch bolts on a 2.75-inch center. If your deck is 48 inches or larger, these are likely correct; smaller decks may use 11x4.00-5 tires. Always measure your existing tire diameter (13 inches) and rim width (5 inches) to confirm.

Key Things to Know

• Quality: These are aftermarket assemblies with a 4.6-star rating—most users report they match OEM fit and durability, though the rubber may be slightly softer than genuine Toro parts.
• Installation: Easy bolt-on replacement. No tire mounting or balancing needed. Use a socket wrench to remove the two bolts, swap the assembly, and re-tighten.
• Common gotcha: The included bearings are pre-greased, but check they spin freely—some units arrive with tight bearings that need a tap to loosen. Also, the valve stem position may interfere with some deck brackets; rotate the assembly slightly during installation to avoid rubbing.
• Use case: Ideal for residential or light commercial use. Heavy commercial mowers (daily use on bumpy terrain) may wear the tread faster than OEM.

Should You Buy It

If your Toro or Exmark Lazer Z needs front caster replacements and you want a budget-friendly, ready-to-install option, this set is a solid choice. It’s not for heavy-duty commercial fleets or older models with non-standard axles, but for most owners, it’s a reliable, easy upgrade that saves money over OEM.