TRIPOWER 18x9.50-8 Lawn Mower Tires, Set of 2, 4PR Tubeless NHS R3 Turf Tires for Riding Mowers, Garden Tractors & Golf Carts, Tire Only, Rim Not Included

What It Is

The TRIPOWER 18x9.50-8 tires (set of two) are 4-ply rated, tubeless NHS (Not for Highway Service) R3 turf tires designed for riding mowers, garden tractors, and golf carts. They provide low ground pressure and a smooth ride on turf, making them ideal for mowing, light hauling, and utility use on established lawns.

Fitment & Compatibility

Before buying, confirm three things:

• Tire size: Must be exactly 18x9.50-8 (diameter 18", width 9.50", rim diameter 8"). Check the sidewall of your current tire for this stamp.
• Rim width: Fits rims with a width of 6.0" to 8.0" (most common for 8" rims). Measure your rim’s bead seat width if unsure.
• Load capacity: Each tire supports up to 480 lbs at 22 PSI. Verify this meets your mower’s axle weight (check owner’s manual or weigh the machine). These are aftermarket, not OEM-specific, so they fit most brands (John Deere, Cub Cadet, Husqvarna, etc.) that use 18x9.50-8 tires. Rims are not included.

Key Things to Know

• Quality: 4-ply rating is standard for residential use—durable enough for normal mowing but not for heavy commercial abuse or rocky terrain.
• Installation: Requires mounting on existing rims. If you don’t have tire tools (bead breaker, tire irons, air compressor), expect to pay $10–$20 per tire at a shop.
• R3 tread: Smooth, shallow tread pattern—great for turf, but poor on wet grass or loose dirt (no traction). Not for muddy conditions.
• Tubeless: Use with a tubeless valve stem (not included). Ensure rim beads seal properly; older rims may need cleaning or bead sealer.

Should You Buy It

If you need a reliable, budget-friendly replacement for worn-out 18x9.50-8 turf tires on a riding mower or garden tractor used primarily on lawns, this set is a solid value. Skip it if you require a higher ply rating (e.g., 6-ply for rocky ground) or aggressive tread for off-road use.