2 Pack 4.80/4.00-8 Inner Tire Heavy Duty Inner Tire 4.80/4.00-8Inner Tube with TR87 Angled Valve Stem, Inner Tubes Ideal for Lawn Mowers, Wheelbarrows, Go Karts, ATVs for 4.80-8 4.00-8

What It Is

This is a 2-pack of heavy-duty 4.80/4.00-8 inner tubes designed to replace a failed tube inside a pneumatic tire. They’re built for lawn mowers, wheelbarrows, go-karts, and small ATVs—any machine that uses a 4.80-8 or 4.00-8 tire size.

Fitment & Compatibility

Before buying, check your tire’s sidewall for the size marking. This tube fits both 4.80-8 and 4.00-8 tires (the 4.80 is wider, the 4.00 is narrower—the tube stretches to fit either). The TR87 angled valve stem is common on mower wheels, but verify your rim has clearance for an angled stem (some rims require a straight stem). This is an aftermarket tube, not OEM-specific, so it works with any brand of tire in that size range. Measure your rim diameter (8 inches) and width (4-5 inches) to confirm.

Key Things to Know

• Quality: Heavy-duty rubber, but some users report slow leaks from the valve stem if not seated perfectly. Inspect the stem base before installing.
• Installation: Moderate difficulty—you’ll need to break the tire bead, remove the old tube, and avoid pinching the new tube between the tire and rim. Use tire irons and a lubricant (soapy water works).
• Common gotcha: Over-inflation can cause the tube to bulge between the bead and rim. Stick to 20-30 PSI max for mower tires; 15-20 PSI for wheelbarrows.
• Valve stem: The TR87 is angled 90 degrees, which helps on tight rims but can be awkward to access for inflation. Make sure your air chuck fits.

Should You Buy It

If you need a reliable, budget-friendly replacement for a flat 4.80/4.00-8 tube and are comfortable doing the swap yourself, this 2-pack is a solid value. It’s not for heavy off-road use or high-speed ATVs—stick to light-duty applications like mowers and wheelbarrows.