Flat Free Wheelbarrow Tire 4.00-6 with 3/4 & 5/8 Wheel Bearing, 3-6" Hub 13 inch Solid Rubber Tire Replacement Wheelbarrow Wheel 400-6 for Wheel Barrel Yard Cart Garden Wagon : Amazon.com.au: Home Improvement
Relaxdays Wheelbarrow Wheel with Inner Tube, Set of 2, Tyres, 4.00-6 Inches, Pneumatic Tyres, for Wheelbarrows, up to 136 kg, Black : Amazon.com.au: Home Improvement
1/2 Pcs Inner Tube Tire Innertube Wheelbarrow Rubber Valve 6 Inch TR13 Fit 3.50/4.00-6 350/400-6 | Walmart Canada
Traveller 13x5/6.5-6 Lawn and Garden Inner Tire Tube with TR-87 Valve Stem at Tractor Supply Co.
Sherlock Standard Size Inner Wheelbarrow Tube - Bunnings Australia