18x8.50-8 Lawn & Garden Mower Tires, Set of 2,4 Ply Tubeless | 18x8.5x8 Tubeless, Set of 2,Tractor Turf Tire, 4 Ply Heavy Duty, For Riding Golf Carts Lawn Mower

What It Is

This set of two 18x8.50-8 tubeless turf tires is designed for zero-turn mowers, garden tractors, riding mowers, and golf carts that require a low-profile, high-flotation tire for turf-friendly traction on grass, dirt, and gravel.

Fitment & Compatibility

Before buying, confirm these three measurements:

• Tire size: Must be 18x8.50-8 (18" diameter, 8.5" wide, 8" rim). Not interchangeable with 18x9.5-8 or 16x6.5-8.
• Rim size: Requires an 8-inch diameter wheel (rim not included). Measure your existing rim’s bead seat diameter.
• Bolt pattern/offset: These are tires only – not wheels. They fit any 8" rim that accepts a 18x8.50-8 tire. No bolt pattern check needed for the tire itself, but verify your rim’s width (typically 6-7 inches for this size).
• Load capacity: 4-ply rating handles up to ~600 lbs per tire, suitable for standard residential riding mowers and light-duty garden tractors. Not for heavy commercial zero-turns over 1,000 lbs.

Key Things to Know

• 4-ply vs 2-ply: The 4-ply construction offers better puncture resistance and load capacity than budget 2-ply tires, but rides slightly stiffer on turf.
• Tubeless installation: These are tubeless. Ensure your rim has a good bead seat (no rust or dents) or use an inner tube if the rim is damaged.
• Installation difficulty: Moderate. Requires tire irons, bead breaker, and air compressor (or high-volume pump). Not a quick swap if you’re new to tire mounting.
• Common gotcha: The “18x8.50-8” size is sometimes listed as “18x8.5x8” – same thing. But double-check your old tire’s sidewall stamp; some mowers use 18x9.5-8, which is wider and won’t fit properly.

Should You Buy It

If you need a reliable, affordable replacement for worn-out turf tires on a riding mower or garden tractor, this set delivers solid value. It’s best for residential users who want better durability than standard 2-ply tires without paying premium commercial prices. Avoid if you require a specific OEM tread pattern or need a tire for a heavy-duty zero-turn over 800 lbs.