FVRITO Inner Tube for 18x8.50-8 / 18x9.50-8 Tires — 8" Rim, Heavy-Duty Rubber Kit with Valve Stem & Spare Cores

FVRITO 18x8.50-8 / 18x9.50-8 inner tube is a heavy-duty replacement tube designed to fit 8" rims and multiple 18" tire sizes for lawn mowers, golf carts, tractors and utility equipment.

Keep your small equipment rolling with a dependable inner tube that matches several common 18" tire dimensions. This FVRITO tube is molded from premium rubber, equipped with a straight aluminum valve stem and supplied in a kit with spare valve caps, cores and a wrench so you have everything needed for a quick roadside or garage repair.

Will this inner tube fit my tire and rim?

The FVRITO inner tube is made to be compatible with a range of 18-inch tire sizes and an 8" rim. It is a universal-style tube intended to stretch and seat properly inside tires listed by size.

• Fits tire sizes: 18x6.50-8, 18x7.50-8, 18x8.50-8, 18x9.50-8
• Designed for 8" rim diameter
• Check your tire sidewall to confirm the printed size before purchase

What equipment can use this tube?

This inner tube suits a wide variety of small-vehicle and utility applications where an 18" tire on an 8" rim is used. It’s a practical replacement for both residential and light commercial gear.

• Lawn mowers, garden tractors, and riding mowers
• ATV quads, go-karts and golf carts with compatible tires
• Wheelbarrows, hand trucks, flat carts, yard trailers, wagons, dollies
• Equipment like generators, pressure washers, snow blowers and air compressors

What’s included and how is it built?

The tube package supplies spare parts and tools so you aren’t stranded with a simple puncture. The main tube is made from heavy-duty rubber intended for extended service life under normal loads.

• Contents: 2 inner tubes, 2 red valve caps, 2 black valve caps, 1 valve-core wrench, 5 brass valve cores
• Straight aluminum valve stem for easier inflation access
• Thick, premium rubber construction for puncture resistance and durability

How do I install or replace the tube?

Replacing the inner tube is straightforward with basic tools and the included valve-core wrench. Inspect the tire and rim for sharp objects and rough edges before installing to reduce repeat punctures.

• Remove wheel from vehicle and deflate completely
• Break bead, pull old tube out, inspect tire interior and rim strip
• Slightly inflate new tube to give it shape, place inside tire, seat tire on rim, then inflate to recommended pressure

Who is this for? This FVRITO inner tube kit is ideal for homeowners, landscapers, small-farm operators and DIY mechanics who need a reliable, ready-to-install spare for 18" tires on 8" rims. If you maintain mowers, utility trailers, carts, or small engines and want a durable, value-packed replacement with spare valve parts, this kit covers common sizes and comes with the extras to complete a quick repair.