2Pack 20x8.00-8, 20x10.00-8 Lawn Mowers Tubes with TR13 Straight Valve Stem,Heavy Duty Replacement Inner Tubes for Garden Trailer Tractor Golf Cart

What It Is

This is a two-pack of heavy-duty replacement inner tubes designed for lawn mowers, garden tractors, golf carts, and small trailers. They provide an airtight seal inside a tire, preventing flats and maintaining proper inflation for smooth operation.

Fitment & Compatibility

• Tire sizes: Fits 20x8.00-8 and 20x10.00-8 tires (both share the same 8-inch rim diameter). Measure your tire’s sidewall markings—if it says 20x8.00-8 or 20x10.00-8, these tubes will work.
• Valve stem: TR13 (straight, short) fits most standard 8-inch rims. Check your rim’s valve hole diameter—TR13 stems are about 0.625 inches wide. If your rim uses a larger hole (e.g., for TR15 or TR87), you’ll need an adapter or a different tube.
• Rim width: Compatible with rims 5 to 7 inches wide (common for lawn tractors). Verify your rim’s actual width by measuring inside the tire bead seat.
• Brand/model: Universal aftermarket fit—works with Craftsman, John Deere, Troy-Bilt, Husqvarna, and most zero-turn mowers, garden tractors, or utility trailers using those tire sizes. No OEM-specific adapters needed.

Key Things to Know

• Heavy-duty construction: Made from thicker rubber (0.078-inch vs standard 0.060-inch) to resist punctures and tears. Good for rough terrain or heavy loads.
• Installation tip: Remove the tire from the rim completely. Dust the tube with talcum powder or soapy water to prevent pinching during mounting. Over-inflating slightly after installation helps seat it evenly.
• Common gotcha: The TR13 stem is short—if your rim has a deep offset or a recessed valve hole, the stem may not protrude enough for easy inflation. Check stem length (about 1.5 inches) against your rim’s design.
• No warranty on misuse: These tubes are for 8-inch rims only. Do not use on larger rims (e.g., 10-inch) or with mismatched tire sizes—they will fail.

Should You Buy It

If you need a reliable, budget-friendly pair of replacement tubes for 20x8.00-8 or 20x10.00-8 tires on a lawn mower, garden tractor, or small trailer, this is a solid choice. The heavy-duty rubber offers extra durability, and the price is competitive. Just confirm your rim’s valve stem hole size and stem clearance before buying.