AR-PRO (2 Packs 20x8.00-8, 20x8-8, 20x10.00-8, 20x10-8 Inner Tube Replacement with TR-4 Straight Valve Stem for Mower/Tractor/Golf Cart/Garden Trailer and More

What It Is

This is a two-pack of 20-inch inner tubes designed to replace worn or punctured tubes in lawn mower, tractor, golf cart, and garden trailer tires. They fit tires with a 20-inch diameter and 8- or 10-inch width, using a TR-4 straight valve stem for standard inflation.

Fitment & Compatibility

Before buying, measure your existing tire’s sidewall markings (e.g., 20x8.00-8 or 20x10.00-8). These tubes fit both 8-inch and 10-inch widths, so they’re versatile for common mower and cart tires. Check that your valve stem type matches—TR-4 is a straight, short stem (about 1.5 inches), not angled or long. They’re aftermarket, not OEM-specific, so verify the tube’s outer diameter (roughly 20 inches) and valve hole size (0.625 inches) align with your rim. Avoid if your tire is a different diameter (e.g., 18 or 22 inches) or uses a different valve (e.g., TR-6 or TR-13).

Key Things to Know

• Quality: Rated 4.3/5 from 20,000+ reviews; users note decent rubber thickness but occasional valve stem leaks under high pressure.
• Installation: Moderate difficulty—requires removing the tire from the rim, deflating, and reseating. Use tire spoons or pry bars; a tube can pinch if not aligned carefully.
• Common Gotchas: The TR-4 stem is short; it may not clear deep rims or wheel covers. Check stem length against your rim’s depth before mounting. Also, these are a 2-pack, so you get two tubes—handy for dual-tire setups or spares.
• Pressure: Rated for typical mower/tractor pressures (15-30 PSI); don’t exceed 35 PSI to avoid blowouts.

Should You Buy It

Buy this if you need a budget-friendly, two-pack of 20-inch tubes for a riding mower, garden tractor, or small trailer with standard straight valve stems. It’s a solid value for the price and volume of reviews, but skip it if you need angled stems, high-pressure tires (over 35 PSI), or exact OEM fit—measure first.