20x10-8, 20x8-8, 20x10.00-8, 20x8.00-8, 15x6.00-6 Inner Tubes，for Riding Mower Lawn Tractor Snow Blower Golf Cart Garden Trailer,with TR13 Straight Valve Stem, by NAKAO (20x8.00-8 1pcs)

What It Is

This is a set of replacement inner tubes designed for pneumatic tires on riding mowers, lawn tractors, snow blowers, golf carts, and garden trailers. The tubes fit multiple tire size variants (20x10-8, 20x8-8, 20x10.00-8, 20x8.00-8, and 15x6.00-6) and come with a TR13 straight valve stem.

Fitment & Compatibility

Before buying, confirm your tire size is one of the listed options—check the numbers printed on your tire sidewall (e.g., 20x8-8 or 15x6.00-6). This tube is not universal for all 8" rims; width matters. For 20" tires, it fits widths from 8 to 10 inches; for 15" tires, it fits 6-inch width. The TR13 valve stem is straight and 1.5" long—ensure your rim hole accommodates a straight stem (not bent or angled). OEM vs aftermarket: works as a direct replacement for most brands (Cub Cadet, John Deere, Husqvarna, etc.) as long as tire size matches. No special adapter needed.

Key Things to Know

• Quality: Butyl rubber construction is standard—durable but not premium. Expect average lifespan; punctures are possible with rough terrain.
• Installation difficulty: Moderate. You’ll need to remove the wheel, break the tire bead, and replace the tube. A tire spoon or pry bar helps. Watch for pinching the tube between rim and tire—dust with talc to prevent sticking.
• Common gotcha: Valve stem alignment is critical. The TR13 stem must sit straight through the rim hole; if the tube twists during installation, the stem may leak or be impossible to inflate.
• Single tube: This listing is for 1 tube. If you need two, buy two separately.

Should You Buy It

Right for you if you need a budget-friendly, multi-size tube for occasional use on a mower or garden trailer and are comfortable with DIY tire work. Skip it if you require heavy-duty, puncture-resistant tubes for frequent off-road use or commercial equipment—consider thicker 0.090" or 0.100" tubes instead.