John Deere GP Specs ( 1928-1935 )
Production
| Description | Row-Crop tractor / Built in Waterloo, Iowa, USA / Original price was $1,200 in 1935 |
|---|---|
| Manufacturer | John Deere |
| Total built | 30,535 (GP) |
Engine
| Bore/Stroke | 5.75x6.00 inches (146 x 152 mm) / 6.00x6.00 inches (152 x 152 mm) |
|---|---|
| Coolant capacity | 36 qts (34.1 L) / 36 qts (34.1 L) |
| Description | John Deere / kerosene / 2-cylinder / liquid-cooled inline / Original engine, used until 1931. Water-injection system was used to prevent detonation ("knocking") with low quality fuels. / John Deere / kerosene / 2-cylinder / liquid-cooled |
| Displacement | 311.6 ci (5.1 L) / 339.3 ci (5.6 L) |
| Rated RPM | 900 / 950 |
| Engine type | John Deere 5.1L 2-cyl kerosene / John Deere 5.6L 2-cyl kerosene |
| Aux. fuel | 2 gal (7.6 L) |
| Engine type | John Deere 5.1L 2-cyl kerosene / John Deere 5.6L 2-cyl kerosene |
| Fuel tank | 16 gal (60.6 L) |
| Belt (claimed) | 20 hp (14.9 kW) |
| Belt (tested) | 25.36 hp (18.9 kW) |
| Drawbar (claimed) | 10 hp (7.5 kW) |
| Drawbar (tested) | 18.86 hp (14.1 kW) |
| Plows | 2 (14-inch) |
Transmission
| Gears | 3 forward and 1 reverse |
|---|---|
| Transmission type | 3-speed unsynchronized gear |
| Type | unsynchronized gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Manual steering |
| Drive type | Two-wheel drive |
Dimensions & Tires
| Height | 55.5 inches (140 cm) |
|---|---|
| Length | 112 inches (284 cm) |
| Weight | 3,600 lbs (1632 kg) |
| Front tire | 24x6 |
| Rear tire | 42.75x10 |
| Weight | 3,600 lbs (1632 kg) |
| Ag front | 24x6 steel / 6.00x16 |
| Ag rear | 42.75x10 steel / 10.00x32 |
GP Serial Number Location
| Description | Below gear shift lever |
|---|
GP Serial Numbers
| 1928 | 200211 |
|---|---|
| 1929 | 201336 |
| 1930 | 212038 / 5000-5202 (GP-P) |
| 1931 | 223803 / 15000 (GP-O) |
| 1932 | 228666 / 15226 (GP-O) |
| 1933 | 229051 / 15387 (GP-O) |
| 1934 | 229216 / 15412 (GP-O) |
| 1935 | 230514 / 15589 (GP-O) |
| Description | FAQ: How to read a serial number table. |
| Final | 230745 / 15732 (GP-O) |
Nebraska Tractor Test 153
| Belt fuel use (max) | 2.7 gal/hour (10.2 l/hour) |
|---|---|
| Belt power (max) | 24.97 hp (18.6 kW) |
| Description | 311 kerosene 3-speed 2WDOctober 22 - 29, 1928Link: Nebraska Tractor Test 153 file / Drawbar performance |
| Max power | 17.24 hp (12.9 kW) |
| Max pull | 2,489 lbs (1129 kg) |
Nebraska Tractor Test 190
| Belt fuel use (max) | 2.7 gal/hour (10.2 l/hour) |
|---|---|
| Belt power (max) | 25.36 hp (18.9 kW) |
| Description | 339 distillate 3-speed 2WDMay 4 - 15, 1931Link: Nebraska Tractor Test 190 file / Drawbar performance |
| Max power | 18.86 hp (14.1 kW) |
| Max pull | 2,853 lbs (1294 kg) |
References
| Description | 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. |
|---|
Tractor Tests
| Description | NTTL 153: 311 kerosene 3-speed 2WD / NTTL 190: 339 distillate 3-speed 2WD |
|---|
Variants
| GPO | orchard |
|---|---|
| GP-P | potato |
| GPWT | wide-tread |