4.80-8/4.00-8 Inner Tubes (2-Pack), TR-87 Bent Valve Stem | Heavy-duty replacement tire tubes for wheelbarrows, garden carts, utility trailers and hand trucks.

What It Is

This is a 2-pack of heavy-duty 4.80/4.00-8 inner tubes with a TR-87 bent valve stem, designed to replace worn or punctured tubes in wheelbarrows, garden carts, utility trailers, and hand trucks.

Fitment & Compatibility

Before buying, measure your tire’s sidewall markings – you need a tire marked 4.80-8 or 4.00-8. These tubes fit both sizes (the 4.80/4.00-8 designation means they work with either). The TR-87 valve stem is bent at a 90° angle, which is common for small wheels where a straight stem won’t clear the hub or frame. Check your wheel’s valve hole orientation – if your current stem is straight, this bent stem may require a different routing path. Not for tubeless tires or rims without a valve hole. Verify your wheel’s inside diameter (8 inches) matches.

Key Things to Know

• Quality tip: These are butyl rubber – heavy-duty and holds air longer than standard rubber, but still check for mold lines or thin spots before installing.
• Installation: Use tire irons and lubricant (soapy water works) to avoid pinching the tube. Inflate to 20-25 PSI max – overinflation can burst the tube.
• Common gotcha: The bent stem can be tricky to seat if your wheel has a deep hub. Test fit the stem through the hole before mounting the tire.
• Pack value: Two tubes for $15.99 is a solid deal – keep one as a spare for quick swaps on the job.

Should You Buy It

If you own a wheelbarrow, garden cart, or small utility trailer with 8-inch tires and need a reliable, affordable replacement, this 2-pack is a smart buy. The bent stem works for most standard wheels, and the heavy-duty build handles rough terrain and loads well. Skip it if you need a straight stem or have tubeless rims.