18x8.50-8 Lawn Mower Tire 4 Ply 18x8.50x8 Tubeless Tire Replacement for Garden Lawn Tractor Riding Lawn Mower, 2 Pack

What It Is

This is a set of two 18x8.50-8 tubeless lawn mower tires, 4-ply rated, designed for the rear axle of garden tractors and riding mowers. They provide traction and load support for machines used on turf, light dirt, or gravel.

Fitment & Compatibility

Before buying, confirm your existing tire size is 18x8.50-8 (18" overall diameter, 8.50" section width, 8" rim diameter). Measure your current tire’s sidewall stamp—don’t guess by the mower model. These are tubeless, so they require a compatible 8" rim (usually 7" wide) with a bead-lock design. They fit most riding mowers and garden tractors from brands like John Deere, Craftsman, Husqvarna, MTD, and Troy-Bilt that use that size, but verify your mower’s axle width and offset (typically 3.5" to 4.5" center hole). OEM replacements vary; check if your original tires were 4-ply or higher to match load capacity.

Key Things to Know

• Quality & Durability: 4-ply rating is standard for residential use—adequate for grass and light yard work, but not for heavy commercial loads or rocky terrain. Expect reasonable tread life on turf.
• Installation: Mounting is DIY-friendly if you have tire irons and a bead seater. No tube needed, but check rim condition for rust or damage that could prevent a seal. Balancing is rarely required for mower tires.
• Common Gotchas: “18x8.50-8” tires often vary slightly in actual diameter (by 0.5") between brands—measure your mower deck clearance if tight. The 2-pack saves money, but confirm you need two (rear tires). These are not for zero-turn mowers with different rim widths or offsets.
• Air Pressure: Run at 10–14 PSI for riding mowers; over-inflation reduces traction and ride comfort. Under-inflation risks rim damage.

Should You Buy It

Buy this set if you need a budget-friendly, direct replacement for worn rear tires on a residential garden tractor or riding mower with 8" rims, and you’re comfortable with basic DIY mounting. Skip it if you require a higher ply rating for heavy loads, rough terrain, or a commercial mower.