103-3168 Anti-scratch chassis wheel bolt kit, 5/8 inch bore wheel mower for Bad Boy/Exmark/Kubota, part numbers: 022-5234-98, 103-4051, 103-7263, 1-603299

What It Is

This anti-scratch chassis wheel bolt kit secures rear caster wheels with a 5/8-inch bore to zero-turn mower decks, preventing bolt-on scratches during installation or maintenance. Designed for heavy-duty commercial mowers from Bad Boy, Exmark, and Kubota.

Fitment & Compatibility

Before buying, check three things: your mower’s wheel bore must be 5/8 inch; the kit replaces OEM part numbers 022-5234-98, 103-4051, 103-7263, and 1-603299; and the bolt length matches your deck thickness (typically 1–2 inches on zero-turn decks). Measure your existing bolt length if unsure—this kit works with most Bad Boy ZT/Outlaw, Exmark Lazer Z, and Kubota ZD/ZG series models. Not for residential push mowers or decks with non-standard bore sizes.

Key Things to Know

• Quality: Steel bolts with anti-scratch coating reduce deck marring compared to standard hardware, but coating may wear over time.
• Installation: Simple bolt-on swap—requires a socket wrench and basic mechanical skill; no special tools needed.
• Gotchas: Verify bolt thread pitch (likely 3/8-16 or 1/2-13) matches your deck; if not, the kit won’t tighten securely. Also, anti-scratch feature won’t prevent all deck damage if bolts are overtightened.
• Reviews: Only 2 ratings at 4.7 stars, so long-term durability is unproven at scale.

Should You Buy It

Yes, if you own a compatible Bad Boy, Exmark, or Kubota zero-turn and want a cheap, easy upgrade to reduce deck scratches during wheel swaps. Skip it if your bore or bolt pattern differs, or if you need heavy-duty hardware for extreme commercial use.