Introduction
Pioneer Tractor Junior (1915-1916)
The Pioneer Tractor Junior is a standard-tread agricultural tractor manufactured in Winona, Minnesota, USA, between 1915 and 1916. This historical machine represents early 20th-century mechanical engineering designed for heavy-duty field operations.
Engine and Performance
The tractor is powered by a 4-cylinder gasoline engine with a displacement of 792 cubic inches (13.0 liters). It utilizes a liquid-cooling system to maintain operating temperatures. The engine operates at a rated speed of 625 RPM, delivering 20 hp (14.9 kW) at the drawbar and 45 hp (33.6 kW) at the belt, suitable for stationary machinery tasks.
Transmission and Mechanical Layout
The drivetrain features a gear-type transmission providing 5 forward gears and 1 reverse gear, allowing for varied operational speeds. The tractor employs a two-wheel drive configuration and relies on a manual steering system for directional control.
Dimensions and Build
The Junior model is characterized by a substantial construction, weighing 11,000 lbs (4,989 kg). It measures 157 inches (398 cm) in length, 87 inches (220 cm) in width, and 64 inches (162 cm) in height. It is equipped with 72x20 steel agricultural rear wheels, typical of the era's design for traction in soil.
Conclusion
The Pioneer Tractor Junior is a robust, early-industrial tractor designed for strength and stability. Its substantial weight and high-displacement engine made it a reliable tool for the agricultural demands of the mid-1910s, and it remains a significant piece of history for collectors of vintage machinery.
Production Information of Pioneer Tractor, Junior
- Standard-tread tractor
- Built in Winona, Minnesota, USA
| Manufacturer | Pioneer Tractor |
|---|
Dimension and Tires Information of Pioneer Tractor, Junior
| Length | 157 inches [398 cm] |
|---|---|
| Weight | 11000 lbs [4989 kg] |
| Width | 87 inches [220 cm] |
| Height | 64 inches [162 cm] |
| Ag rear | 72x20 (steel) |
|---|
Engine Specifications of Pioneer Tractor, Junior
- Pioneer Tractor
- Liquid-cooled
- Gasoline
- 4-cylinder
| Rated RPM | 625 |
|---|---|
| Displacement | 792 ci [13.0 L] |
| Bore/Stroke | 6.00x7.00 inches [152 x 178 mm] |
Transmission Information of Pioneer Tractor, Junior
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 5 forward and 1 reverse |
Mechanical Specs of Pioneer Tractor, Junior
- Two-wheel drive
| Steering | Manual |
|---|
Power Information of Pioneer Tractor, Junior
| Drawbar (claimed) | 20 hp [14.9 kW] |
|---|---|
| Belt (claimed) | 45 hp [33.6 kW] |
Where it sits
With 50 hp[B] HP, the Pioneer Tractor Junior sits between Special (33 HP) and 30 (66 HP) in Pioneer Tractor's range. Its power puts it in the 85th percentile of 1910s models in our database (158 machines).
Frequently asked questions
How much horsepower does the Pioneer Tractor Junior have?
The Pioneer Tractor Junior delivers 50 hp[B] HP.
What years was the Pioneer Tractor Junior produced?
The Pioneer Tractor Junior was produced in 1915-1916.
What engine does the Pioneer Tractor Junior have?
The Pioneer Tractor Junior is powered by a Gasoline, 4-cylinder engine.
What transmission does the Pioneer Tractor Junior use?
The Pioneer Tractor Junior uses a Gear transmission.
How much does the Pioneer Tractor Junior weigh?
The Pioneer Tractor Junior weighs 11000 lbs [4989 kg].
Is the Pioneer Tractor Junior 4WD?
The Pioneer Tractor Junior is available in 2WD.