Hart-Parr 40-80
Power
110 hp
Production
1908-1909
Engine
4-cylinder
Weight
34,000 lbs [15422 kg]
Drive
2WD
Introduction
Hart-Parr 40-80: Historical Heavy-Duty Tractor
The Hart-Parr 40-80 is a significant historical tractor model produced between 1908 and 1909. First introduced at the Minnesota State Fair in 1908, this machine represents the early era of industrial-scale agricultural mechanization in the United States, with only 10 units ever manufactured at the Hart-Parr facility in Charles City, Iowa.
Engine and Performance
The tractor is powered by a liquid-cooled, 4-cylinder engine running on kerosene. It features a massive displacement of 3309.4 cubic inches (54.2 liters) with a bore and stroke measurement of 9.00 by 13.00 inches. The engine produces a rated power of 110 hp (82.0 kW), providing 40 hp (29.8 kW) at the drawbar and 80 hp (59.7 kW) at the belt for stationary machinery operation.
Mechanical Specifications and Chassis
The Hart-Parr 40-80 utilizes a 2WD drivetrain and manual steering, consistent with the engineering standards of the early 20th century. The machine is supported by steel rear wheels measuring 98x28 inches, contributing to its substantial operating weight of 34,000 lbs (15,422 kg), which was necessary to generate sufficient traction for heavy plowing tasks.
Conclusion
Due to its limited production run of 10 units, the Hart-Parr 40-80 is regarded as a rare piece of agricultural history. Its technical design, characterized by high displacement and significant mass, reflects the requirements of early 1900s farming, making it a focal point for collectors of vintage agricultural machinery.
Production Information of Hart-Parr, 40-80
- The Hart-Parr model 40-80 was introduced at the Minnesota State Fair in 1908.
- Built in Charles City, Iowa, USA
| Manufacturer | Hart-Parr |
|---|---|
| Total built | 10 |
Dimension and Tires Information of Hart-Parr, 40-80
| Weight | 34,000 lbs [15422 kg] |
|---|
| Ag rear | 98x28 (steel) |
|---|
Engine Specifications of Hart-Parr, 40-80
- Hart-Parr
- Liquid-cooled
- Kerosene
- 4-cylinder
| Power | 110 hp [82.0 kW] |
|---|---|
| Displacement | 3309.4 ci [54.2 L] |
| Bore/Stroke | 9.00x13.00 inches [229 x 330 mm] |
Mechanical Specs of Hart-Parr, 40-80
| Drive | 2WD |
|---|---|
| Steering | Manual |
Power Information of Hart-Parr, 40-80
| Engine | 110 hp [82.0 kW] |
|---|---|
| Drawbar (claimed) | 40 hp [29.8 kW] |
| Belt (claimed) | 80 hp [59.7 kW] |
Where it sits
With 110 HP, the Hart-Parr 40-80 sits between Old Reliable 30-60 (66 HP) and 60-100 (111 HP) in Hart-Parr's range.
Frequently asked questions
How much horsepower does the Hart-Parr 40-80 have?
The Hart-Parr 40-80 delivers 110 HP.
What years was the Hart-Parr 40-80 produced?
The Hart-Parr 40-80 was produced in 1908-1909.
What engine does the Hart-Parr 40-80 have?
The Hart-Parr 40-80 is powered by a 4-cylinder engine.
How much does the Hart-Parr 40-80 weigh?
The Hart-Parr 40-80 weighs 34,000 lbs [15422 kg].
Is the Hart-Parr 40-80 4WD?
The Hart-Parr 40-80 is available in 2WD.