PaoWin 13 x 4.00-6 Inner Tubes 2-Pack — 4.10/4.00/3.50-6 Butyl Tubes with TR87 Bent Valve for Wheelbarrows & Lawn Equipment

PaoWin 4.10/4.00/3.50-6 inner tubes are durable 13 x 4.00-6 replacement tubes with TR87 bent rubber valves, sold as a convenient 2-pack for wheelbarrows, mowers, wagons and light equipment.

These inner tubes are molded from butyl rubber to deliver airtight performance and reliable shock absorption for 6-inch rim tires with 3.50–4.10 inch widths. Designed to fit a wide range of garden and utility equipment, the tubes use a rubber-coated TR87 bent valve stem that improves sealing and resists debris. Each order includes two tubes, giving you a ready spare or a matched pair for both sides of an axle.

How do I confirm this tube fits my tire?

Check three measurements stamped on your tire or listed in your equipment manual: rim diameter (6"), tire width (3.50–4.10"), and overall tire designation (often shown as 13 x 4.00-6). This PaoWin tube is labeled for those variants and several common notations.

• Fits 6-inch rim tires: 3.50-6, 4.00-6, 4.10-6
• Accepts tire notations like 13 x 4.00-6 or 350/410-6
• Measure rim and tire markings if unsure before purchase

What makes the TR87 bent valve stem useful?

The bent TR87 valve is rubber-coated to help create a tighter seal against the wheel and reduce the chance of sand or dust getting into the valve area. Its angled shape also makes inflating easier in tight wheel wells and on equipment where straight valves are hard to access.

• Rubber-coated stem enhances valve seating and airtightness
• Bent design improves access for pumps and gauges
• Durable rubber seat resists tearing and extends valve life

How durable are these tubes for heavier yard and utility work?

Made from high-quality butyl rubber, these inner tubes are built for repeated use, resisting common punctures and holding air well for longer periods than cheaper alternatives. They deliver dependable cushioning and longevity for home and light commercial equipment.

• Butyl rubber construction for superior airtightness
• Good shock absorption for rough terrain and loads
• Suitable for both occasional and frequent use

Which machines and tools are compatible with this tube?

The PaoWin 4.10/4.00/3.50-6 inner tube fits many common small-vehicle and garden tools that use 13 x 4.00-6 tires. Think of it as a versatile replacement part that reduces downtime across seasonal and everyday tasks.

• Wheelbarrows, wagons, garden carts and hand trucks
• Lawn mowers, snow blowers, small tractors and ATVs (where tire size matches)
• Generators, compressors, dollies, trailers, go-carts and wood chippers

Who is this for?

This two-piece pack is ideal for homeowners, landscapers, small-farm operators and light-commercial users who need a reliable, easy-to-install tire tube for 6-inch-rim equipment. If you maintain wheelbarrows, mowers, trailers or other utility gear and want a durable replacement with better sealing and easier inflation access, these PaoWin inner tubes are a practical choice. If you are unsure about fit, verify the tire markings on your tire or equipment manual before ordering. PaoWin also provides customer support to help with fitment and questions after purchase.