8TEN Deck Roller For Exmark Husqvarna Viking Hydro iZ 4217 4821 4818 42 48 Inch Decks 103-3168 539102643 2 Pack

What It Is

This is a set of two replacement deck rollers for zero-turn mowers, designed to support the mower deck and prevent scalping on uneven terrain. They’re commonly used on Exmark, Husqvarna, and Viking Hydro models with 42- or 48-inch fabricated decks.

Fitment & Compatibility

Before buying, confirm three things:

• Deck size: Fits 42-inch and 48-inch decks only. Not for 36-inch or 54-inch+ decks.
• OEM cross-reference: Replaces Exmark part 103-3168 and Husqvarna part 539102643. Check your mower’s manual or old roller for these numbers.
• Physical check: Roller measures approximately 4 inches outer diameter with a 3/8-inch center hole. Verify your deck’s roller bracket spacing and bolt size match. Aftermarket, not OEM—may vary slightly in rubber hardness or bearing tolerance.

Key Things to Know

• Installation difficulty: Easy—typically requires one wrench and a few minutes per roller. No special tools needed.
• Build quality: Solid rubber over a steel core, but some users report the rubber can wear faster than OEM on abrasive surfaces (e.g., gravel, asphalt).
• Common gotcha: The included bolts may not match your deck’s thread pitch. Use your original hardware if possible.
• Pack quantity: Two per pack—covers one axle on most zero-turn decks (some decks use two rollers per side; verify your count).

Should You Buy It

A budget-friendly replacement if you need a quick fix for worn deck rollers on compatible Exmark, Husqvarna, or Viking Hydro zero-turns. Best for homeowners or light commercial use where OEM-level durability isn’t critical—but if you mow daily on rough terrain, consider spending more on genuine parts.