TIRE INNER TUBE 4.00x9 TR13 Straight Valve replaces Oregon 71-800 Lesco 003126One New Aftermarket Replacement Tire Inner Tube 4. 80 4. 00 8 TR13 Straight Valve for Lawn & Garden Equipment This 4. 80 4. 00 8 tire inner tube with a TR13 straight Schrader valve stem is a universal fit replacement for wheelbarrows, lawn and utility carts, hand trucks, tillers, wagons, and other lawn and garden equipment using 8 inch rims. The tube accommodates both 4. 00 and 4. 80 width tires on 8 inch rims, including sizes designated as 4. 00 8,