Graham-Bradley 103
The Graham-Bradley 103 is a tractor produced by Graham Bradley. It is equipped with a 218 ci 3.6 L engine. The rated power output is 30.38 hp 22.7 kW. Transmission: 4 forward and 1 reverse.
Engine Power
30.38 hp
22.7 kW
Fuel & Capacities
Gasoline
Transmission
4 forward and 1 reverse
Graham Bradley Graham-Bradley 103 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
 | 1938 - 1939
Row-Crop tractor |
|---|---|
1938 - 1939 | |
Row-Crop tractor | |
Production | |
|---|---|
Manufacturer | Graham-Bradley |
Row-Crop tractor | |
Built in Detroit, Michigan, USA | |
Variants | |
|---|---|
103 | row-crop |
104 | standard tread |
Graham-Bradley 103 Engine | |
|---|---|
Graham-Paige 3.6L 6-cyl gasoline | |
Engine details ...  |
Graham-Bradley 103 Transmission | |
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4-speed gear | |
Transmission details ...  |
Graham-Bradley 103 Power | |
|---|---|
Plows | 3 (14-inch) |
Drawbar (tested) | 25.20 hp
18.8 kW |
Belt (tested) | 30.38 hp
22.7 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two-wheel drive | |
Steering | manual |
Open operator station. | |
Dimensions & Tires | |
|---|---|
Front tire | 5.50x16 |
Rear tire | 9.00x36 |
Full dimensions and tires ...  | |
Belt Pulley | |
|---|---|
Diameter | 15 inches
38 cm |
Width | 7.25 inches
18 cm |
RPM | 714 *The Graham Bradly has advertised at 714 belt RPM. A final drive disconnect lever allowed the use the gear shift to obtain four different speeds, plus reverse, if desired. |
Speed | 2800 ft/min
853.44 meters/min |
Engine
Engine Detail — 218 ci / 3.6 L Gasoline
Manufacturer | Graham-Paige |
Fuel Type | Gasoline |
Configuration | 6-cylinder, liquid-cooled |
Displacement | 218 ci
3.6 L |
Bore/Stroke | 3.25x4.375 inches
83 x 111 mm |
Fuel system | Schebler carburetor |
Air cleaner | oil bath |
Rated RPM | 1500 |
Firing order | 1-5-3-6-2-4 |
Transmission
Transmission — 4 forward and 1 reverse gear
Type | gear |
Gears | 4 forward and 1 reverse |
Clutch | dry disc |
 | |
Dimensions
Graham-Bradley 103 Tires | |
|---|---|
Ag front | 5.50x16 |
Ag rear | 9.00x36 |
Dimensions |
|---|
Tests
Nebraska Tractor Test 296 | |
|---|---|
Gasoline 4-speed 2WD
April 6 - 14, 1938
Link: Nebraska Tractor Test 296 file | |
Belt power (max) | 30.38 hp
22.7 kW |
Belt fuel use (max) | 3.1 gal/hour
11.7 l/hour |
Drawbar performance | |
Max power | 25.20 hp
18.8 kW |
Gear 2 used for power test. | |
Max pull | 3013 lbs
1366 kg |
Gear 1 used for pull test. | |
Photos
1938 Graham-Bradley 103 tractor.
1938 Graham-Bradley 103 tractor.
Graham-Bradly 103 operator station and controls.
Related models
Graham-Bradley 104
- Power:
- -1
- Production years:
- 1938 - 1939