Cenipar 20x8.00-8'' Inner Tubes, 20x8-8, 20x10.00-8, 20x10-8 Inner Tubes for Heavy Duty Cart,Such as Trunk, Tractor, Garden Carts,Golf Cart, Mowers, with TR13 Straight Valve Stem,Pack of 2

What It Is

These are replacement inner tubes (pack of 2) designed to hold air inside pneumatic tires on heavy-duty carts, lawn tractors, garden carts, golf carts, and mowers. The TR13 straight valve stem fits standard wheel rims and is common on utility and turf equipment.

Fitment & Compatibility

Before buying, confirm your tire size matches one of these: 20x8.00-8, 20x8-8, 20x10.00-8, or 20x10-8. The tube fits any tire with a 20-inch outer diameter and an 8-inch rim diameter, regardless of tire width (8 or 10 inches). Check that your valve stem hole is sized for a TR13 (straight, ~0.625-inch diameter) stem—no angle or offset. This is an aftermarket part, not OEM-specific, so it works across brands (John Deere, Cub Cadet, Craftsman, etc.) as long as tire dimensions match. Measure your old tube’s width and rim size to be safe; the tube stretches slightly to accommodate the listed widths.

Key Things to Know

• Quality: Users report good durability for the price—holds air well with proper installation. Some note the rubber is slightly thinner than premium brands, but fine for light-to-medium duty.
• Installation: Moderate difficulty. You’ll need tire irons or a pry bar to break the bead and remove the tire from the rim. Avoid pinching the tube between the rim and tire bead during reassembly—use a little soapy water or talc to reduce friction.
• Common gotcha: The TR13 stem is straight, not angled or offset. If your rim requires a bent stem (e.g., for clearance), this won’t work. Also, the tube is not self-sealing or puncture-proof—use with standard tires only.
• Valve cap: Included caps are basic plastic; consider upgrading to metal caps for better seal longevity.

Should You Buy It

Buy these if you need a budget-friendly, reliable replacement for a 20x8-8 or 20x10-8 tube on a garden cart, mower, or light tractor—especially if you’re replacing multiple tubes at once. They’re not for heavy commercial use or extreme loads, but for typical homeowner and hobbyist tasks, they deliver solid value.