John Deere GP
1928 - 1935 Two-Cylinder Letter Series Row-Crop tractor
Series map:
GP
20.0hp*
*Estimated engine power for comparison only.
Production Manufacturer John Deere
Row-Crop tractor Built in Waterloo, Iowa, USA Total built 30,535 (GP)
5,103 (GPWT)
717 (GPO)
Original price was $1,200 in 1935 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.
Variants GPWT wide-tread
GPO orchard
GP-P potato
John Deere GP Power Drawbar (claimed) 10 hp7.5 kW
Belt (claimed) 20 hp14.9 kW
Plows 2 (14-inch)
Drawbar (tested) 18.86 hp14.1 kW
Belt (tested) 25.36 hp18.9 kW
Performance test details ...
Mechanical Two-wheel drive Manual steering Open operator station.
GP Serial Number Location Below gear shift lever
GP Serial Numbers 1928 200211
1929 201336
1930 212038
1931 223803
1932 228666
1933 229051
1934 229216
1935 230514
Final 230745
1931 15000 (GP-O)
1932 15226 (GP-O)
1933 15387 (GP-O)
1934 15412 (GP-O)
1935 15589 (GP-O)
Final 15732 (GP-O)
1930 5000-5202 (GP-P)
FAQ: How to read a serial number table.
References Tractors 1918-1976 published by John Deere* Quality Equipment for Your Farming Operations published in 1929, by John Deere General Purpose Tractor published in 1930, by John Deere General Purpose Two-Cylinder Tractor published in 1931, by John Deere *Publication contains known errors.
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Engine details ...
Transmission details ...
Performance test details ...
John Deere GP photos...
Full dimensions and tires ...
