GICOOL 11x4.00-5 Replacement Inner Tube, 2 Pack with TR-13 Valve Stem, Heavy Duty, for Zero Turn Mower Front Tire

What It Is

This is a heavy-duty 11x4.00-5 inner tube, sold as a 2-pack with TR-13 (snap-in) valve stems. It’s designed to replace worn or punctured tubes in the front tires of zero-turn mowers, lawn tractors, and small utility trailers.

Fitment & Compatibility

Before buying, confirm three things:

• Tire size: The tube fits tires marked 11x4.00-5. It does not fit 11x4.10-5 or 13x5.00-6 tires.
• Valve stem: TR-13 is a short, straight, snap-in stem (about 1.5 inches long). It works with most zero-turn front rims, but check that your rim’s valve hole accepts this type—not a TR-87 (angled) or TR-415 (long, threaded).
• Rim width: This tube safely fits rims 3.5 to 4.5 inches wide. If your rim is wider (e.g., 5 inches), the tube may stretch and fail early.

No brand-specific fitment—works with any machine using 11x4.00-5 tires (e.g., Cub Cadet ZT1, Husqvarna Z242F, Toro TimeCutter, John Deere Z335E).

Key Things to Know

• Heavy-duty but not puncture-proof: The rubber is thicker than standard tubes (0.09-inch vs. typical 0.06-inch), which resists thorns and wear, but slime or foam filling is still advisable for rough terrain.
• Installation tip: The tube arrives folded. Let it sit in warm water for 5 minutes before installing to make it flexible and reduce the risk of pinching between the tire bead and rim.
• Valve stem caution: The TR-13 stem is short. If your rim has deep offset or a recessed valve hole, you may need a valve stem extender to reach a pump chuck.
• 2-pack value: At this price, it’s cheaper than buying two single tubes from most big-box stores, and the quality is consistent.

Should You Buy It

Buy this if you need a dependable, budget-friendly 2-pack for front tires on zero-turn mowers or lawn tractors, especially if you’re replacing worn tubes or keeping spares for quick field repairs. Skip it if your rim requires an angled or extra-long valve stem, or if you run on heavy brush—then consider a foam-filled or slime-ready tube instead.