Introduction
Graham-Bradley 103: Row-Crop Tractor
The Graham-Bradley 103 is a vintage row-crop tractor produced between 1938 and 1939 in Detroit, Michigan, USA. Designed for agricultural operations during this period, the machine is characterized by its 33-horsepower engine and two-wheel drive configuration.
Engine and Powertrain
The tractor is powered by a 6-cylinder gasoline engine with a displacement of 218 cubic inches (3.6 liters). It utilizes a liquid cooling system to maintain operating temperatures and features a Schebler carburetor for fuel management. Air intake is filtered through an oil bath system. The engine is rated at 1500 RPM, with a firing order of 1-5-3-6-2-4 and a bore/stroke ratio of 3.25 by 4.375 inches.
Transmission and Mechanical Layout
Power is delivered through a gear-type transmission providing 4 forward gears and 1 reverse gear. The drivetrain incorporates a dry disc clutch. The tractor utilizes a two-wheel drive system, controlled via manual steering. The operator station is of the open-type design, consistent with tractors of that era.
Tires and Dimensions
To accommodate row-crop applications, the tractor is equipped with specific agricultural tire sizing. The front tires are sized 5.50x16, while the rear tires feature a 9.00x36 configuration, providing the necessary traction for field tasks.
Conclusion
The Graham-Bradley 103 serves as a representative example of late 1930s row-crop machinery. Its mechanical simplicity, combined with a standard 6-cylinder gasoline engine, makes it a notable piece for collectors of vintage American agricultural equipment.
Production Information of Graham-Bradley, 103
- Row-Crop tractor
- Built in Detroit, Michigan, USA
| Manufacturer | Graham-Bradley |
|---|
Dimension and Tires Information of Graham-Bradley, 103
| Ag front | 5.50x16 |
|---|---|
| Ag rear | 9.00x36 |
Engine Specifications of Graham-Bradley, 103
- Graham-Paige
- Liquid-cooled
- Gasoline
- 6-cylinder
| Fuel system | Schebler carburetor |
|---|---|
| Displacement | 218 ci [3.6 L] |
| Air cleaner | Oil bath |
| Bore/Stroke | 3.25x4.375 inches [83 x 111 mm] |
| Firing order | 1-5-3-6-2-4 |
| Rated RPM | 1500 |
Transmission Information of Graham-Bradley, 103
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 4 forward and 1 reverse |
| Clutch | Dry disc |
Mechanical Specs of Graham-Bradley, 103
- Two-wheel drive
- Open operator station.
| Steering | Manual |
|---|
Power Information of Graham-Bradley, 103
- Https://www.tractordata.com/farm-tractors/007/3/6/7366-graham-bradley-103-tests.html
Where it sits
Its power puts it in the 49th percentile of 1930s models in our database (235 machines).
Frequently asked questions
How much horsepower does the Graham-Bradley 103 have?
The Graham-Bradley 103 delivers 33 hp[B] HP.
What years was the Graham-Bradley 103 produced?
The Graham-Bradley 103 was produced in 1938-1939.
What engine does the Graham-Bradley 103 have?
The Graham-Bradley 103 is powered by a Gasoline, 6-cylinder engine.
What transmission does the Graham-Bradley 103 use?
The Graham-Bradley 103 uses a Gear transmission.
Is the Graham-Bradley 103 4WD?
The Graham-Bradley 103 is available in 2WD.