AR-PRO 4.10/4.00/3.50-6 Inner Tubes with TR-87 Bent Valve, Replacement 13x4.00-6 Heavy-Duty Tubes for Lawn Mowers, Tractors, Wheelbarrows, Hand Trucks, Yard Trailers, Snow Blowers and More – 2 Pack

What It Is

These AR-PRO inner tubes (4.10/4.00/3.50-6) with TR-87 bent valve stems are heavy-duty replacements for air-filled tires on lawn mowers, tractors, wheelbarrows, hand trucks, yard trailers, and snow blowers. They provide a puncture-resistant air chamber inside your existing tire.

Fitment & Compatibility

• Tire size: Fits 4.10/4.00-6, 4.10/3.50-6, 13x4.00-6, and 13x5.00-6 tires. Not for 4.80/4.00-8 or larger sizes.
• Valve stem: TR-87 is a 90-degree bent valve – common on lawn tractors and wheelbarrows. Check your current valve orientation; if straight, you’ll need a different tube.
• Rim diameter: 6-inch rim only. Measure your rim’s inside diameter before ordering.
• OEM vs aftermarket: Universal fit – no specific brand lock-in. Works with most mower brands (John Deere, Craftsman, Husqvarna, Troy-Bilt, etc.) as long as tire size matches.
• Check before buying: Remove your old tube and confirm the tire size printed on the sidewall (e.g., “4.10/3.50-6”). Also verify the valve stem type and bend direction.

Key Things to Know

• Installation difficulty: Moderate. You’ll need tire irons or pry bars to remove the tire from the rim. Watch a YouTube tutorial if you’re new to this.
• Quality: Heavy-duty rubber with reinforced valve base – holds up well under mower weight and rough terrain. No reported premature failures.
• Common gotcha: Over-inflation can cause the tube to pinch between tire and rim. Stick to 20-25 PSI max.
• Two-pack value: At $11.99 for two, it’s often cheaper than buying singles. Keep the spare for future flats.

Should You Buy It

If you need a reliable, budget-friendly replacement for a 6-inch rim tube with a bent valve, this two-pack is a solid buy. It’s especially good for mowers, wheelbarrows, or trailers that see regular use. Avoid if your tire size is larger or if you need a straight valve stem.