GICOOL 4.00-19/5.00-19 Butyl Inner Tubes TR15 Valve Stem, 2-Pack — Heavy-Duty Tractor/Implement Replacement

These inner tubes are molded from thick butyl rubber and built to fit 4.00-19 and 5.00-19 (also compatible with some 4.00/5.00-18 applications) rims. They come as a convenient two-pack so you can replace worn tubes on one wheel now and keep a spare on hand. The TR15 valve stem has a reinforced base to reduce tearing during inflation and service, while the overall construction focuses on airtightness and impact resistance for agricultural use.

Will these inner tubes fit my tractor or farm implement wheel?

The GICOOL tubes are designed to fit rims labeled 4.00-19 and 5.00-19 and may also work with some 4.00/5.00-18 wheel setups. Confirm your rim size stamp or measure the rim diameter before ordering to ensure compatibility.

• Fits 19-inch rim diameters commonly used on small tractors and implements
• Compatible with both 4.00 and 5.00 section widths where specified
• TR15 straight valve stem matches standard tractor valve access
• Sold as a two-pack — one for immediate fitment, one as a spare

How durable and puncture-resistant are these butyl tubes?

Made from heavy-duty butyl rubber with a thickened finish, these tubes deliver improved impact absorption and longer service life versus thin, economy tubes. The material resists slow leaks and stands up better to rough agricultural terrain.

• Thick butyl construction reduces pinch punctures and small tears
• Reinforced valve seat prevents tearing around the stem during inflation
• Designed to retain air pressure longer, lowering refill frequency
• Suitable for routine field conditions and general-purpose use

How simple is installation and maintenance for the replacement tube?

Installation is straightforward for anyone familiar with tire removal and tube mounting: unseat the tire, remove the old tube, insert the new GICOOL tube, align the TR15 valve stem, and reseat the tire. Basic tools, a pump and a bit of patience are all you need.

• TR15 straight valve stem aligns with common tractor wheel openings
• Standard patch kits and pumps work for field repairs and inflation
• Follow normal tire mounting torque and bead seating practices
• Keep the spare tube in a cool, dry place to maximize shelf life

What maintenance should I plan for to extend tube life?

Regularly check tire pressure, inspect for embedded debris, and keep the wheel rims clean to avoid valve-seat damage. Address slow leaks quickly and store unused tubes away from direct sunlight and ozone sources.

• Check pressure before each heavy-use period or weekly
• Remove stones and sharp debris from tire treads and rim wells
• Replace or tighten rusty rim hardware to prevent valve-seat abrasion
• Patch small punctures with a compatible butyl repair kit when needed

Who this is for: Farmers, landscapers, small-scale contractors and hobbyists who maintain tractors, cultivators, or other agricultural implements and need reliable, affordable replacement inner tubes. The GICOOL two-pack suits anyone who prefers a sturdier butyl tube with a reinforced TR15 valve stem for fewer inflation issues and improved uptime in field conditions.