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Two black rubber inner tubes with straight valves lying side by side

RAYBESTOS UNBRANDED

RAYBESTOS UNBRANDED 4.80/4.00-8 inner tube accessory

SKU CH-SKHR-7NKCN MPN 4.80/4.00-8

Pair of 4.00-8 and 4.80-8 butyl rubber inner tubes with straight valves rated to 30 PSI for wheelbarrows and tillers

  • Selling UnitPair
  • TypeLawn & Garden
  • Fits 4.00-8 and 4.80-8 wheelbarrow and tiller tires
  • Butyl and natural rubber resists punctures and heavy loads
  • Snug fit minimises slippage and air leakage
  • Consistent 30 PSI pressure gives a stable ride
  • Straight valve and user-friendly design allow quick replacement

Pair of inner tubes for wheelbarrows and tillers

These inner tubes fit 4.00-8 and 4.80-8 tyre sizes on wheelbarrows and garden tillers. They are sold as a pair of new butyl and natural rubber tubes. Each tube uses a straight air valve for inflation. They suit owners maintaining lawn and garden equipment.

Rubber construction handles punctures

The tubes are made from butyl and natural rubber chosen to resist punctures and abrasion under heavy loads. A secure fit reduces the chance of slippage or air leakage during use. Consistent pressure retention gives a smooth, stable ride across uneven ground. Maximum inflation is 30 PSI.

Straight valve and 30 PSI limit decide fit

Each tube has a straight valve, so the wheel rim must accept that valve style. The 30 PSI maximum inflation pressure must match the tyre sidewall rating. Buyers needing a different valve type or a higher pressure rating should look elsewhere.

Highlights

  • Fits 4.00-8 and 4.80-8 wheelbarrow and tiller tires
  • Butyl and natural rubber resists punctures and heavy loads
  • Snug fit minimises slippage and air leakage
  • Consistent 30 PSI pressure gives a stable ride
  • Straight valve and user-friendly design allow quick replacement

Specifications

Selling UnitPair
TypeLawn & Garden

Questions about this item

How do I install the 4.80/4.00-8 inner tube and what step do people often miss?

Deflate the old tube fully, remove the tyre from the rim, insert the new butyl rubber tube with its straight valve through the rim hole, tuck the tyre bead back on evenly, then inflate slowly to 30 PSI while checking the bead seats uniformly — skipping the slow bead-seat check causes pinched tubes and instant leaks.

What maintenance or replacement will the 4.80/4.00-8 inner tube need later?

Check pressure monthly and top up to 30 PSI; inspect the straight valve core for dirt and the rubber for cracks or abrasion cuts after heavy loads — replace the tube if it no longer holds pressure overnight or shows sidewall splitting.

What limit appears first on the 4.80/4.00-8 inner tube under sustained heavy use?

The 30 PSI maximum inflation ceiling is reached first; exceeding it under constant load stretches the butyl rubber, leading to rapid pressure loss or blow-out before tread wear becomes an issue.

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