AR-PRO 20x8.00-8 Rear Tire and Wheel Assemblies for Riding Lawn Mowers - 3/4" Borehole, 3.5" Offset Hub and 3/16" Keyway, 4 Ply Tubeless, 965lbs Capacity (Set of 2)

What It Is

This is a set of two 20x8.00-8 rear tire and wheel assemblies designed for riding lawn mowers and garden tractors. They replace worn or damaged rear tires on zero-turn mowers, lawn tractors, and similar equipment, providing a 4-ply tubeless tire with a 965 lbs load capacity per pair.

Fitment & Compatibility

Before buying, check these three measurements:

• Axle size: Borehole is 3/4" – measure your axle shaft diameter. If it’s 5/8" or 1", this won’t fit.
• Hub offset: 3.5" offset – measure from the wheel mounting face to the center of the tire. A 3.5" offset is common on many Craftsman, Husqvarna, John Deere, and MTD models, but verify against your old wheel.
• Keyway: 3/16" keyway – check if your axle uses a key (most do). If your mower uses a pin or spline, this won’t work.

Also confirm the tire size (20x8.00-8) matches your current tire. This is a universal aftermarket replacement, not OEM-specific, so it fits many brands but not all. Measure your old wheel’s bolt pattern (typically 4 on 4" or 4 on 4.5") – these wheels use a standard 4-hole pattern.

Key Things to Know

• Quality: 4-ply rating is standard for residential use; 965 lbs capacity is adequate for most riding mowers (under 600 lbs machine weight). Tread pattern is a general-purpose turf tire.
• Installation: Easy bolt-on if measurements match. No tire mounting needed – they come pre-assembled on wheels. You may need to transfer the old valve stem cap or add sealant for tubeless use.
• Common gotchas: The 3.5" offset can cause clearance issues on some mowers with tight rear fenders or frame brackets. Measure clearance before buying. Also, the 3/16" keyway requires a matching key (not included). If your axle uses a 1/4" key, you’ll need to file or replace.
• Tubeless: No inner tube required, but ensure the rim bead is clean and the valve is seated properly to avoid slow leaks.

Should You Buy It

Buy this set if you need a direct-fit, affordable replacement for a 20x8.00-8 rear tire with a 3/4" axle, 3.5" offset, and 3/16" keyway. It’s a solid value for residential mowers from major brands, but skip it if your axle size or offset differs, or if you need a higher ply rating for heavy commercial use.