Introduction
Leader 25-40 Agricultural Crawler Tractor
The Leader 25-40 is a crawler tractor manufactured between 1916 and 1920 by Leader, a division of Dayton-Dick, in Quincy, Illinois, USA. Designed for heavy-duty agricultural labor, this machine is representative of early 20th-century tractor technology.
Engine and Performance
The tractor is powered by a 4-cylinder, liquid-cooled engine with a displacement of 792 cubic inches (13.0 liters). It operates at a rated speed of 750 RPM and utilizes a kerosene fuel system managed by a Kingston-Bennett carburetor. Starting the engine requires manual effort via a hand crank. The engine delivers a claimed 25 horsepower (18.6 kW) at the drawbar and 40 horsepower (29.8 kW) at the belt pulley.
Transmission and Drive System
The drivetrain features a manual gear transmission providing two forward speeds and one reverse gear. The machine utilizes a half-track drive configuration, which provides increased surface contact for traction in field conditions. Steering is managed through a manual control system, and the operator operates the vehicle from an open station.
Dimensions and Specifications
The Leader 25-40 has a total operating weight of 6,000 pounds (2,721 kg). The engine bore and stroke dimensions are 6.00 by 7.00 inches (152 x 178 mm). At the time of its introduction in 1916, the tractor was priced at $1,550.
Conclusion
The Leader 25-40 was designed for primary cultivation and traction tasks, serving as a robust solution for large-scale agricultural operations of its era. Its combination of a high-displacement engine and crawler traction makes it a significant model for historians of early mechanized farming.
Production Information of Leader, 25-40
- Original price was $1,550 in 1916
- Agricultural Crawler tractor
- Built in Quincy, Illinois, USA
| Manufacturer | Leader (a part of Dayton-Dick) |
|---|
Dimension and Tires Information of Leader, 25-40
| Weight | 6000 lbs [2721 kg] |
|---|
Engine Specifications of Leader, 25-40
- Kerosene
- 4-cylinder
- Liquid-cooled
| Rated RPM | 750 |
|---|---|
| Bore/Stroke | 6.00x7.00 inches [152 x 178 mm] |
| Displacement | 792 ci [13.0 L] |
| Starter type | Hand crank |
| Fuel system | Kingston-Bennett carburetor |
Transmission Information of Leader, 25-40
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 2 forward and 1 reverse |
Mechanical Specs of Leader, 25-40
- Manual steering
- Open operator station.
| Drive | Half-track |
|---|
Power Information of Leader, 25-40
| Drawbar (claimed) | 25 hp [18.6 kW] |
|---|---|
| Belt (claimed) | 40 hp [29.8 kW] |
Where it sits
With 44 hp[B] HP, the Leader 25-40 sits just above C 18-36 (40 HP) in Leader's range. Its power puts it in the 80th percentile of 1910s models in our database (158 machines).
Frequently asked questions
How much horsepower does the Leader 25-40 have?
The Leader 25-40 delivers 44 hp[B] HP.
What years was the Leader 25-40 produced?
The Leader 25-40 was produced in 1916-1920.
What engine does the Leader 25-40 have?
The Leader 25-40 is powered by a 4-cylinder engine.
What transmission does the Leader 25-40 use?
The Leader 25-40 uses a Gear transmission.
How much does the Leader 25-40 weigh?
The Leader 25-40 weighs 6000 lbs [2721 kg].