4.80/4.00-8 (16"x 4") Everhard, Heavy Duty, Wheelbarrow Assembly
16" WIDE PNEUMATIC AIR WHEEL TYRE 16 X 6.50-8 WHEELBARROW PLASTIC RIM 4 PLY | eBay
Amazon.com: 13 Inch Wheelbarrow Tire Wheel Replacement Air Filled Fits Tires Size of 4.00"x 6" (3.50/2.50-8") 5/8" Bearings for Wheel Barrel Yard Garden : Patio, Lawn & Garden
Marathon Universal Fit Pneumatic (Air-Filled) 14.5-inch Tire and Wheel Assembly, Replacement for 4.80/4-8; 4-8; 4.80-8; 4-6; 3.50-8, Wheelbarrow/Cart Use, Castle Tread in the Wheels & Tires department at Lowes.com
4.80/4.00-8 Inch, (15" x 4") HD Contractor Stud/Diamond Tread Wheelbarrow Assembly-Black Tire
Marathon 14.5 in. Flat Free Universal Wheelbarrow Wheel 00270 - The Home Depot
Amazon.com : True Temper T22CC 8 in. Hub Tubed Wheelbarrow Tire Wheel with Ribbed Tread, 8-Inch, Black : Wheelbarrows : Patio, Lawn & Garden