John Deere G Unstyled
The John Deere G Unstyled is a tractor produced by John Deere. It is equipped with a 412.5 ci 6.8 L engine. The rated power output is 35.91 hp 26.8 kW. Transmission: John Deere. Operating weight: 5000 lbs 2268 kg.
Engine Power
35.91 hp
26.8 kW
Fuel & Capacities
17 gal
64.3 L
Transmission
John Deere
Operating Weight
5000 lbs
2268 kg
John Deere G Unstyled Serial Number & Year Decoder
Find the exact manufacture year of your tractor by checking your chassis serial number below.
Where to Find the Serial NumberThe serial number plate is commonly located on the front frame, tractor transmission housing (right side), or instrument panel badge.
Overview
 | 1937 - 1953
Model year 1937-19411942-19481948-1953
Two-Cylinder Letter SeriesRow-Crop tractor |
|---|---|
1937 - 1953 | |
Model year 1937-19411942-19481948-1953 | |
Two-Cylinder Letter Series | |
Row-Crop tractor | |
Production | |
|---|---|
Manufacturer | John Deere |
Row-Crop tractor | |
Built in Waterloo, Iowa, USA | |
Total built | 10,684 (Unstyled) |
The first 3,250 John Deere model G tractors (serial number 1000 through 4250) are known as "low radiator" Gs. Overheating issues resulted in a production change to a larger radiator beginning with serial number 4251. Many of the original tractors were refitted with the new radiator. | |
John Deere G Engine | |
|---|---|
John Deere 6.8L 2-cyl all fuel | |
Fuel tank | 17 gal
64.3 L |
Aux. fuel | 1.5 gal
5.7 L |
Engine details ...  | |
John Deere G Transmission | |
|---|---|
4-speed gear | |
Transmission details ...  |
John Deere G Power | |
|---|---|
Drawbar (claimed) | 20.70 hp
15.4 kW |
Belt (claimed) | 31.44 hp
23.4 kW |
Plows | 3 (14-inch) |
Drawbar (tested) | 27.63 hp
20.6 kW |
Belt (tested) | 35.91 hp
26.8 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two-wheel drive | |
Manual steering | |
Open operator station. |
Power Take-off (PTO) | |
|---|---|
Rear PTO | transmission |
Rear PTO Type | 540 (1.75) |
Dimensions & Tires | |
|---|---|
Weight | 5000 lbs
2268 kg |
Front tire | 24x5 |
Rear tire | 51.5x7 |
Full dimensions and tires ...  | |
References | |
|---|---|
 | |
The John Deere Unstyled Letter Series by J.R. Hobbs | |
Tractors 1918-1976 published by John Deere* | |
General-Purpose Tractors published in 1938, by John Deere | |
General-Purpose Tractors published in 1940, by John Deere | |
General Catalog published in 1940, by John Deere | |
*Publication contains known errors. |
Engine
Engine Detail — 412.5 ci / 6.8 L
Manufacturer | John Deere |
Configuration | 2-cylinder, liquid-cooled |
all fuel | |
Displacement | 412.5 ci
6.8 L |
Bore/Stroke | 6.125x7.00 inches
156 x 178 mm |
Compression | 4.2:1 |
Rated RPM | 975 |
Firing order | 1-2 |
Starter type | hand crank |
Oil capacity | 11 qts
10.4 L |
Coolant capacity | 44 qts
41.6 L |
Transmission
Transmission — John Deere
Transmission | John Deere |
Type | gear |
Gears | 4 forward and 1 reverse |
Clutch | dry disc |
 | |
Dimensions
John Deere G Tires | |
|---|---|
Ag front | 24x5 |
6.00-16 | |
Ag rear | 51.5x7 |
12x38 (13.6) | |
Dimensions | |
|---|---|
Length | 135 inches
342 cm |
Width | 61.5 inches
156 cm |
Height | 84 inches
213 cm |
Operating weight | 5000 lbs
2268 kg |
Tests
Nebraska Tractor Test 295 | |
|---|---|
Distillate 4-speed 2WD
November 15 - 19, 1937
Link: Nebraska Tractor Test 295 file | |
Belt power (max) | 35.91 hp
26.8 kW |
Belt fuel use (max) | 3.9 gal/hour
14.8 l/hour |
Drawbar performance | |
Max power | 27.63 hp
20.6 kW |
Gear 2 used for power test. | |
Max pull | 4,085 lbs
1852 kg |
Gear 1 used for pull test. | |
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