AR-PRO 4.00-6 (13x4.00-6) Replacement Pneumatic Tires & Tubes — 2 Sets for 6" Rims, Ribbed Tread

These AR-PRO 4.00-6 (13x4.00-6) replacement pneumatic tires and inner tubes come as two complete sets designed to fit 6" rims on wheelbarrows, Gorilla Carts and similar yard equipment.

If a worn-out tire is slowing you down, these replacement tire-and-tube sets restore mobility quickly and affordably. Each pack contains two tires and two inner tubes built for non-highway, utility use; they accept manual inflation with a standard pump and use TR13 straight valve stems sized for most garden equipment. The ribbed tread improves traction and water dispersion for better handling across turf, gravel, mud, and packed dirt.

How do these tires fit my wheelbarrow or garden cart?

Measure the sidewall of your existing tire for the printed size. These sets are sized for 4.00-6 (also shown as 13x4.00-6) tires and are intended to mount on 6" rims; the inflated tire diameter is about 13 inches.

• Match sidewall size to 4.00-6 or 13x4.00-6
• Designed for 6-inch rim mounting
• Included inner tubes have TR13 straight valve stems
• Not compatible with vehicle or highway applications

What performance can I expect from the ribbed tread pattern?

The ribbed tread prioritizes forward traction and efficient water clearance so you can push or tow loads with fewer slips and improved steering. It’s a practical choice for the mix of surfaces that yard equipment typically encounters.

• Ribbed grooves evacuate water and reduce slipping
• Steering remains responsive on packed and loose ground
• Good general-purpose balance between grip and rolling resistance
• Suitable for lawn, gravel paths, and garden beds

How do the inner tubes and TR13 valve stems affect maintenance?

Each inner tube includes a TR13 straight valve stem, the common standard for many lawn-and-garden tires. The rubber-covered straight stem is a simple, serviceable design that fits most hand pumps and standard adapters.

• TR13 straight valve length ~1.38 inches, diameter ~0.453 inches
• Maximum rated pressure up to 30 PSI — check your equipment limits
• Replaceable tubes simplify roadside repairs or seasonal swaps
• Air fills with manual pumps or compatible compressors

Are these durable enough for regular yard work?

The tires are constructed with a multi-ply rubber casing intended for residential and light commercial utility duty, offering a balance of toughness and cost-effectiveness. They’re made for the loads and speeds typical of wheelbarrows, garden carts, and similar equipment, not for motorized or highway use.

• 4-ply rubber construction for puncture resistance and load support
• Engineered for hand-propelled and towed yard tools
• Not rated for motorized vehicles or high-speed travel
• Keep spare tubes for fast roadside fixes

Who is this for? These AR-PRO replacement tires and tubes are aimed at homeowners, landscapers, and hobby gardeners who need a budget-friendly, reliable replacement for worn utility tires. They’re ideal if you own a wheelbarrow, Gorilla Cart, garden trolley, or similar equipment that uses 13" diameter tires on 6" rims and you want a straightforward swap to restore traction and mobility without buying premium off-road or vehicle-grade tires.