Mr Mower Parts Deck Roller Wheel 108798 Compatible with Toro Wheel Horse 3" x 3-3/4" Anti Scalp Deck Wheel

What It Is

The Mr Mower Parts Deck Roller Wheel 108798 is an anti-scalp deck wheel designed to prevent the mower deck from digging into the turf on uneven ground. It fits Toro Wheel Horse and other select lawn tractors, replacing OEM part 108798.

Fitment & Compatibility

Before buying, verify these three things:

• Measure your existing wheel: This replacement is 3" diameter x 3-3/4" overall height (including the stem). If your current wheel matches these dimensions, it’s likely a direct fit.
• Check your mower model: Confirmed compatible with Toro Wheel Horse models like 712, 714, 716, 518, 520, 522, 524, and 521H. Also fits some MTD and Craftsman decks using the same wheel pattern.
• Stem type: This uses a metal stem with a shoulder that slides into a bracket or tube on the deck. If your deck has a different mounting method (e.g., bolt-through), this won’t work.

If your OEM part number is 108798, this is a direct aftermarket substitute.

Key Things to Know

• Quality vs. OEM: Made of hard plastic with a metal insert—durable for residential use but may wear faster than OEM under heavy commercial mowing on rough terrain.
• Installation difficulty: Very easy—just pull the old wheel off the stem and push the new one on. No tools required unless the old wheel is seized.
• Common gotcha: The stem can be a tight fit in some brackets. If it’s too loose, the wheel may wobble; too tight, it won’t spin freely. A little grease on the stem helps.
• Price point: At $11.99, it’s about half the cost of a genuine Toro part, making it a budget-friendly option for replacing worn wheels.

Should You Buy It

Buy this if you have a Toro Wheel Horse or compatible lawn tractor with a worn or missing anti-scalp wheel and want a low-cost, easy install. It’s best for residential mowing on lawns with bumps or dips. Skip it if you need a heavy-duty wheel for daily commercial use—go with OEM for longer life.