List of John Deere Tractors - GP Tractor

GP Tractor

On June 20, 1928, the model designation was changed from "C" to "GP" to avoid confusion with the "D" when dealers were phoning in orders to the factory. "GP" stands for General Purpose. This new model GP had the same horsepower, engine displacement, weight and 3-speed transmission as the model C. The GP's first serial number was 200211 . In 1930, the GP was updated with a 25-horsepower, 339-cubic-inch engine.

The John Deere model GP continued in production, and was built in five distinct versions through the course of its production:

• The standard-front GP, or John Deere Standard, built from March 1928 to February 1935.
• The John Deere two-wheel tricycle-front GP, or GP-Tricycle, of which twenty-three units were built between August 1928 and April 1929
• The John Deere GP Wide-Tread, or GPWT, built from November 1929 to November 1933
• The John Deere GP Wide-Tread Series P, a GPWT with narrowed rear tread width designed to suit potato rows, built between January and August 1930.
• The John Deere General Purpose Orchard tractor, or "GPO", from April 1931 to April 1935. This tractor had specialized shielding for groves and orchards and around low-hanging branches. Some GPOs were fitted with crawler undercarriages from the Lindeman Brothers in Yakima, Washington. These are commonly known as "GPO Lindemans".

The John Deere Model A came off the assembly line in April 1934. The tractor was 25 hp, was 309 CID and had a 4-speed transmission. There were 8 different model A variations. Some of these were tricycle, Hi-Crop, orchard, single front tire and industrial models. The tricycle wheel design, patterned after that of the Farmall tractor, reduced steering effort and greatly increased maneuverability. In the following year, 1935, the prototype of the smaller model B was developed. The model B started rolling of the assembly line in June 1934. This tractor came accompanied with a shorter frame than the model A which was eventually lengthened so it could use some of the same equipment that the larger models A and G used. There were also 8 different model B tractor variations, the same as the larger model A.

The much larger G model arrived in 1937. It was fitted with a 36-horsepower, 425-cubic-inch engine and a 4-speed transmission. John Deere publicized the G as a 3-plow tractor and was built until 1941 when the GM came along (GM stands for G, Modernized). The GM model was made from 1942 to 1947. The power was increased to 38 horsepower and a new 6-speed transmission was also added. The G model got a restyled front at this point as did the other John Deere tractors models. The GM had electric starting and lighting added to it options. During its production time the G tractor was available as a hi-crop, single front wheel and styled.