N766 Turf 20X8.00-8 B/4PLY

What It Is

The N766 Turf 20X8.00-8 B/4PLY is an aftermarket turf tire designed for zero-turn mowers, lawn tractors, and commercial mowers that require a 20-inch diameter, 8-inch wide tire on an 8-inch rim. It’s built for low ground pressure and minimal lawn damage, making it ideal for mowing on delicate turf or residential lawns.

Fitment & Compatibility

Before buying, confirm three things:

• Tire size: Must be 20X8.00-8 (20” tall, 8” wide, 8” rim diameter). Measure your current tire’s sidewall markings—don’t guess based on mower model alone.
• Rim width: The 8.00 width fits a 7” to 8.5” wide rim. Measure your rim’s bead seat width; if it’s narrower or wider, this tire may not seat properly or could bulge.
• Load rating: The B/4PLY rating means a 4-ply bias ply construction with a load capacity around 715 lbs at 28 PSI. Check your mower’s weight (including operator) per wheel to ensure it’s not exceeded.

This tire is an aftermarket replacement for OEM tires on brands like John Deere, Husqvarna, Toro, Cub Cadet, and Gravely, but fitment varies by deck size and axle clearance. Always measure clearance around the tire (deck, spindle, frame) with the mower on level ground.

Key Things to Know

• Quality concerns: With a 3.5/5 rating from only 3 reviews, there’s limited feedback. Some users report uneven tread wear or balancing issues—inspect the tire on delivery for mold flash or out-of-roundness.
• Installation difficulty: Moderate. You’ll need to break the bead on the old tire, mount this one, and inflate to seat the bead. A tire machine or tire irons are recommended; hand tools alone can be frustrating.
• Common gotchas: The “B” in B/4PLY stands for bias ply, not radial. Bias ply tires have stiffer sidewalls and may ride harsher than radials. Also, check valve stem orientation before mounting—some aftermarket tires have angled stems that can hit the rim or deck.
• Pressure: Run at 20-28 PSI for turf. Overinflating reduces traction and increases lawn damage; underinflating causes sidewall flex and premature wear.

Should You Buy It

This tire is a budget-friendly option if you need a direct 20X8.00-8 replacement for a zero-turn or lawn tractor used on flat, well-maintained turf. It’s not ideal for heavy commercial use, rough terrain, or if you need a radial tire for better ride quality. If you can verify fitment and accept the limited review history, it’s a solid value for light-duty mowing.