Search for old and used tractors for sale online through classifieds sites such as TractorHouse.com, EquipmentTraderOnline.com, IronSearch.com and FarmCountryTrader.com or the auction site eBay.com, as of 2015. Some sites facilitate online purchasing for tractors, while others only connect buyers and sellers.
Many tractor classifieds sites feature both a standard keyword search tool and an advanced listing search tool. In the keyword search tool, you enter the relevant terms relating to the tractor you want, such as "John Deere tractor," to view all listings that match the terms. The advanced listing search tool enables you to choose from predefined options relating to the make, model and year of the tractor you want as well as options relating to the listing, such as a price range. This also displays listings that match the terms.
Sites such as TractorHouse.com and eBay.com also contain category options that allow you to quickly jump to listings that fall within a specific classification, such as tractors within a certain horsepower range or those from a specific manufacturer. When browsing listings, you can view pictures of the tractor along with information about its condition and options in the individual listing. The listing also contains the seller's contact information, should you have any questions about the tractor.