John Deere GPWT
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| Production | |
| Manufacturer | John Deere |
| Row-Crop tractor | |
| Built in Waterloo, Iowa, USA | |
| The John Deere GP Wide Tread (GPWT) was tricycle-front version of the model GP tractor, with a wide rear axle. There were 203 model GPWT tractors converted to a narrower, 68-inch, rear tread for use in potato fields of the US Northeast. The last 443 GPWT tractors were built with "overhead steering", with a shaft running over the top of the hood in a style similar to the later Model A tractor. The first overhead-steer GPWT was serial number was serial number 404810. | |
| Variants | |
| GP-P | potato, with 68-inch tread |
| John Deere GPWT Engines | |
| John Deere 5.1L 2-cyl kerosene | |
| John Deere 5.6L 2-cyl kerosene | |
| Fuel tank | 16 gal 60.6 L |
| Aux. fuel | 2 gal 7.6 L |
 Engine details ... | |
| John Deere GPWT Transmission | |
| 3-speed unsynchronized gear | |
 Transmission details ... |
| John Deere GPWT Power | |
| Drawbar (claimed) | 10 hp 7.5 kW |
| Belt (claimed) | 20 hp 14.9 kW |
| Plows | 2 (14-inch) |
| Mechanical | |
| Two-wheel drive | |
| Steering | manual |
| Open operator station with steel pan seat. | |
| Photos | |
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 John Deere GPWT photos... | |
| Power Take-off (PTO) | |
| Rear PTO Type | 520 |
| Dimensions & Tires | |
| Wheelbase | 78.4 inches 199 cm |
| Front tire | 24x6 |
| Rear tire | 44x10 |
 Full dimensions and tires ... | |
| GPWT Serial Number Location | |
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| Below gear shift lever |
| GPWT Serial Numbers | |
| 1929 | 400000 |
| 1930 | 400936 |
| 1931 | 402741 |
| 1932 | 404770 |
| 1933 | 405110 |
| Final | 405254 |
| 1930 | 5000 (GP-P) |
| Final | 5202 (GP-P) |
FAQ: How to read a serial number table. | |
| Belt Pulley | |
| Diameter | 13 inches 33 cm |
| Width | 6.5 inches 16 cm |
| RPM | 950 |
| Speed | 3,200 ft/min 975.36 meters/min |
| References | |
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| Tractors 1918-1976 published by John Deere* | |
| *Publication contains known errors. |
| Page information | |
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| TractorData is a family-owned small business located in Minnesota that has been providing reference information on tractors since 1999. | |
| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on June 24, 2025 | |
| http://techpubs.deere.com/ - Official operator manuals for purchase or download from Deere. |