Introduction
Hart-Parr 20-40 Agricultural Tractor
The Hart-Parr 20-40 is a vintage agricultural tractor produced between 1912 and 1914. Manufactured in Charles City, Iowa, this machine belongs to the early era of tractor development, serving as a primary source of mechanized power for agricultural operations during the early 20th century.
Power and Performance
The tractor is equipped with a power plant capable of delivering a claimed 20 hp (14.9 kW) at the drawbar for pulling implements. Additionally, it provides 40 hp (29.8 kW) at the belt pulley, a configuration designed to drive stationary agricultural machinery such as threshers or mills.
Manufacturing Origin
This model was engineered and built by Hart-Parr in Charles City, Iowa. The production period of 1912 to 1914 places this tractor within the formative years of the heavy-duty oil tractor industry.
Conclusion
The Hart-Parr 20-40 is representative of early mechanical traction technology. Its dual-rating power system reflects the necessity for versatile equipment capable of both field work and stationary power tasks, making it a significant reference point for historians and collectors of agricultural machinery.
Production Information of Hart-Parr, 20-40
- Built in Charles City, Iowa
| Manufacturer | Hart-Parr |
|---|
Engine Specifications of Hart-Parr, 20-40
- Hart-Parr
Power Information of Hart-Parr, 20-40
| Drawbar (claimed) | 20 hp [14.9 kW] |
|---|---|
| Belt (claimed) | 40 hp [29.8 kW] |
Where it sits
With 44 hp[B] HP, the Hart-Parr 20-40 sits between 18-36 (40 HP) and 28-44 (48 HP) in Hart-Parr'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 Hart-Parr 20-40 have?
The Hart-Parr 20-40 delivers 44 hp[B] HP.
What years was the Hart-Parr 20-40 produced?
The Hart-Parr 20-40 was produced in 1912-1914.