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john deere GP Tractor Model – Features, Specifications, and Complete Review

Production: 1928 - 1935
john deere GP

When it comes to modern farming, farmers need a tractor that balances power, efficiency, and versatility. The john deere GP with a strong 20 HP engine, designed to meet the needs of small to medium farmers. , this model is a practical choice for those who want performance at an affordable cost.

In this blog, we’ll explore the features, specifications, benefits, and FAQs about the john deere GP Tractor Model, so you can make an informed choice.


Key Features of john deere GP

  • ✔️ Engine Power (20 HP): the tractor delivers excellent performance for ploughing, tilling, sowing, and hauling tasks.
  • ✔️ Tires: Front: 24x6 | Rear: 42.75x10

Production
Manufacturer John Deere
Note Row-Crop tractor
Note Built in Waterloo, Iowa, USA
Total built 30,535 (GP)
  5,103 (GPWT)
  717 (GPO)
Note Original price was $1,200 in 1935
Note 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.
Mechanical
Note Two-wheel drive
Note Manual steering
Note Open operator station.
Dimensions & Tires
Weight 3,600 lbs 1632 kg
Front tire 24x6
Rear tire 42.75x10
Note Full dimensions and tires ...
1928 - 1935
Note Two-Cylinder Letter Series
Note Row-Crop tractor
General
Note 1928 - 1935
Note Two-Cylinder Letter Series
Note Row-Crop tractor
GP Serial Number Location
Note 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)
Note FAQ: How to read a serial number table.
John Deere GP Engines
Note John Deere 5.1L 2-cyl kerosene
Note John Deere 5.6L 2-cyl kerosene
Fuel tank 16 gal 60.6 L
Aux. fuel 2 gal 7.6 L
Note Engine details ...
John Deere GP Power
Drawbar (claimed) 10 hp 7.5 kW
Belt (claimed) 20 hp 14.9 kW
Plows 2 (14-inch)
Drawbar (tested) 18.86 hp 14.1 kW
Belt (tested) 25.36 hp 18.9 kW
Note Performance test details ...
John Deere GP Transmission
Note 3-speed unsynchronized gear
Note Transmission details ...
Photos
Note John Deere GP photos...
References
Note Tractors 1918-1976 published by John Deere*
Note Quality Equipment for Your Farming Operations published in 1929, by John Deere
Note General Purpose Tractor published in 1930, by John Deere
Note General Purpose Two-Cylinder Tractor published in 1931, by John Deere
Note *Publication contains known errors.
Variants
GPWT wide-tread
GPO orchard
GP-P potato

Benefits

  • Perfect for Small & Medium Farmers: Good balance of power and efficiency for most farm operations.
  • Multi-purpose: Suitable for agriculture, haulage, landscaping, and horticulture.
  • Value for Money: Practical features with durable build quality.

FAQs

What is the horsepower?

👉 It comes with 20 HP.


Final Verdict

The john deere GP is a reliable, versatile tractor for multiple uses. With its 20 HP, it offers excellent value for money.