Introduction
Hart-Parr Oil King 23-35
The Hart-Parr Oil King 23-35 is a historical agricultural tractor manufactured between 1916 and 1919 in Charles City, Iowa. This machine represents the early era of mechanized farming, characterized by robust mechanical design and high-displacement engine technology.
Engine and Performance
The tractor is powered by a single-cylinder, liquid-cooled kerosene engine with a displacement of 785.4 cubic inches (12.9 liters). Operating at a rated RPM of 500, the engine features a significant bore and stroke of 10.00 by 10.00 inches. It delivers a claimed 23 horsepower (17.2 kW) at the drawbar for pulling implements and 35 horsepower (26.1 kW) at the belt for stationary equipment operation. The engine cooling system is supported by a 120-quart (113.6-liter) coolant capacity.
Transmission and Mechanical Layout
The Oil King 23-35 utilizes a gear-based transmission system providing two forward gears and one reverse gear. Power is delivered through a two-wheel drive configuration. The operator station is equipped with an open-sided steel canopy, which served as the standard form of protection during the period of its production.
Dimensions and Weight
The tractor is a substantial machine, weighing 12,000 lbs (5,443 kg). It measures 107.75 inches (273 cm) in length, 72 inches (182 cm) in width, and stands 125 inches (317 cm) high, reflecting the heavy-duty construction typical of early 20th-century agricultural machinery.
Conclusion
The Hart-Parr Oil King 23-35 is a representative example of early American tractor manufacturing, designed for heavy-duty agricultural tasks through its high-torque, low-speed kerosene engine. It remains a significant piece of machinery for historical preservation and agricultural history studies.
Production Information of Hart-Parr, Oil King 23-35
- Built in Charles City, Iowa
| Manufacturer | Hart-Parr |
|---|
Dimension and Tires Information of Hart-Parr, Oil King 23-35
| Length | 107.75 inches [273 cm] |
|---|---|
| Weight | 12,000 lbs [5443 kg] |
| Width | 72 inches [182 cm] |
| Height | 125 inches [317 cm] |
Engine Specifications of Hart-Parr, Oil King 23-35
- Hart-Parr
- Liquid-cooled
- Kerosene
- 1-cylinder
| Rated RPM | 500 |
|---|---|
| Displacement | 785.4 ci [12.9 L] |
| Coolant capacity | 120 qts [113.6 L] |
| Bore/Stroke | 10.00x10.00 inches [254 x 254 mm] |
Transmission Information of Hart-Parr, Oil King 23-35
Transmission variants 1
| Transmission | Gear |
|---|---|
| Gears | 2 forward and 1 reverse |
Mechanical Specs of Hart-Parr, Oil King 23-35
- Two-wheel drive
- Open sided steel canopy.
Power Information of Hart-Parr, Oil King 23-35
| Drawbar (claimed) | 23 hp [17.2 kW] |
|---|---|
| Belt (claimed) | 35 hp [26.1 kW] |
Where it sits
With 38 hp[B] HP, the Hart-Parr Oil King 23-35 sits between New Hart-Parr (33 HP) and 18-36 (40 HP) in Hart-Parr's range. Its power puts it in the 72th percentile of 1910s models in our database (158 machines).
Frequently asked questions
How much horsepower does the Hart-Parr Oil King 23-35 have?
The Hart-Parr Oil King 23-35 delivers 38 hp[B] HP.
What years was the Hart-Parr Oil King 23-35 produced?
The Hart-Parr Oil King 23-35 was produced in 1916-1919.
What engine does the Hart-Parr Oil King 23-35 have?
The Hart-Parr Oil King 23-35 is powered by a 1-cylinder engine.
What transmission does the Hart-Parr Oil King 23-35 use?
The Hart-Parr Oil King 23-35 uses a Gear transmission.
How much does the Hart-Parr Oil King 23-35 weigh?
The Hart-Parr Oil King 23-35 weighs 12,000 lbs [5443 kg].
Is the Hart-Parr Oil King 23-35 4WD?
The Hart-Parr Oil King 23-35 is available in 2WD.