2X Anti-Scalp Mower Deck Wheel Roller Bearing Pulley Shoulder Bolt Brass-Plated w/Hex Flange Nut Compatible with Exmark Pioneer Quest for Toro TimeCutter Titan 112-3977 104-8301

What It Is

This is a set of two anti-scalp deck wheels with brass-plated shoulder bolts and hex flange nuts, designed to prevent the mower deck from scalping uneven terrain. It’s a direct replacement for OEM parts on select Exmark, Toro, and other zero-turn mowers.

Fitment & Compatibility

Before buying, verify these three things:

• OEM part numbers: This set replaces Toro 112-3977 and 104-8301, plus similar Exmark parts. Check your mower’s manual or deck for those numbers.
• Deck size: These wheels work on 42–60 inch decks commonly found on Exmark Pioneer/Quest and Toro TimeCutter/Titan models. Measure your existing wheel’s shoulder bolt length (typically 1.5–2 inches) and roller diameter (about 4 inches).
• Bolt pattern: The shoulder bolt uses a 5/16-18 thread. Ensure your deck mounting holes match this size and spacing (usually 3 inches center-to-center). Brass plating is cosmetic—it won’t affect fit but resists corrosion.

Key Things to Know

• Quality: Brass-plated steel bolts are decent for light-to-moderate use, but not as durable as stainless steel. Expect some surface rust over time in wet conditions.
• Installation: Easy, 10-minute job with a wrench. No special tools needed—just remove the old nut, slide out the bolt, swap the wheel, and tighten the new flange nut securely.
• Common gotchas: These wheels may be slightly smaller than OEM on some models, so check clearance against your deck’s anti-scalp bracket. If the deck has a plastic bushing, you may need to reuse it—this kit doesn’t include bushings.
• Fitment variance: While listed for Exmark and Toro, some Cub Cadet and John Deere decks may work if bolt spacing matches. Measure twice.

Should You Buy It

Buy this if you need a budget-friendly, functional replacement for worn anti-scalp wheels on an Exmark Pioneer/Quest or Toro TimeCutter/Titan, and you’re comfortable with a slightly lower build quality than OEM. It’s a solid value for the price, but skip it if you need exact OEM fitment, stainless hardware, or bushing compatibility.