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Worthington Ag Parts is your home for new, used, and rebuilt tractor parts. We stock a broad selection of parts for your John Deere® GP tractor. The John Deere® GP was manufactured for years 1928-1935. It was originally delivered with 22 hp.

The GP was originally designated the Model C, the name was changed due to a similarity to the existing D, plus the "General Purpose" name was a marketing ploy to keep in line with International's new "Farmall". The GP was designed as a row crop tractor, with the fixed front axle straddling three rows. Several versions of the GP were made. The "wide tread" GPWT has a 76-inch rear axle and a tricycle front. The GP-P was a modified GPWT with a 68-inch rear axle, for use in potato fields. The GPO was lowered and had fenders for orchard work. Twenty-four GPO tractors were converted into crawlers by Lindeman.

The availability of some parts varies depending on the time of year. To make sure you find the right parts for your John Deere® tractor, we encourage you to reach out to one of our parts experts. They can make recommendations of the parts you need based on your repair and if we don’t have the right part, they’ll work on your behalf to find the right part.When you need used, new, rebuilt or salvaged parts for your John Deere® GP call us at 888-845-8456 and put the Worthington Ag Parts team to work for you.