Used farm tractor tires are available for sale online at TractorHouse.com, eBay.com, TireTown.com and Fastline.com, as of March 2015. The websites have dozens of listings for tires of various sizes and manufacturers.
Fastline separates its listings by the tire's manufacturer, and while it carries tires from many makers, it focuses on the biggest companies, such as John Deere, Gensco, Goodyear and Firestone. TireTown splits up its inventory by front, rear and metric-sized tires. For rear tires, users have a wide selection of all sizes and ply counts. The site has both new and used tires for sale.
TractorHouse.com's selection is the largest, with more than 1,700 listings. Users can sort the results by size and manufacturer. EBay does not organize its listing by tire size, type or manufacturer, so users have to comb through results to find appropriate matches.