Introduction
Hart-Parr 28-44 Standard-Tread Tractor
The Hart-Parr 28-44 is a vintage agricultural tractor produced between 1930 and 1937 in Charles City, Iowa, USA. Manufactured by Hart-Parr, which later became part of the Oliver Corporation, this standard-tread machine was designed for general field work and heavy-duty traction during the early 20th century.
Engine and Performance
The tractor is powered by a 4-cylinder, liquid-cooled engine designed to run on kerosene. It features a displacement of 443 cubic inches (7.3 liters) and operates at a rated speed of 1125 RPM. This power plant generates 48 horsepower, providing the necessary torque for agricultural implements of its era.
Transmission and Drivetrain
Equipped with a mechanical gear transmission, the 28-44 offers a configuration of 3 forward gears and 1 reverse gear. The tractor utilizes a two-wheel drive system, with manual steering providing direct control for the operator. A rear power take-off (PTO) operating at 540 RPM is included to power external equipment.
Dimensions and Construction
The tractor is built on a chassis with an 80-inch wheelbase and an overall length of 125.75 inches. Its physical footprint includes a width of 65 inches and a hood height of 59.5 inches. The unit has a shipping weight of 5,565 lbs, with an operating weight reaching 6,415 lbs (2,909 kg). It is fitted with steel wheels, featuring 29x6 front tires and 46x12 rear tires.
Conclusion
The Hart-Parr 28-44 represents a period of significant development in tractor engineering. With its robust construction, kerosene-fueled engine, and straightforward mechanical controls, it remains a notable example of pre-war American agricultural machinery, primarily preserved today by collectors and enthusiasts of historical farm equipment.
Production Information of Hart-Parr, 28-44
- Standard-tread tractor
- Built in Charles City, Iowa, USA
| Manufacturer | Hart-Parr (a part of Oliver) |
|---|
Dimension and Tires Information of Hart-Parr, 28-44
| Wheelbase | 80 inches [203 cm] |
|---|---|
| Shipping weight | 5565 lbs [2524 kg] |
| Height (hood) | 59.5 inches [151 cm] |
| Length | 125.75 inches [319 cm] |
| Operating weight | 6415 lbs [2909 kg] |
| Width | 65 inches [165 cm] |
| Ag front | 29x6 (steel) |
|---|---|
| Ag rear | 46x12 (steel) |
Engine Specifications of Hart-Parr, 28-44
- Hart-Parr
- Liquid-cooled
- Kerosene
- 4-cylinder
| Rated RPM | 1125 |
|---|---|
| Displacement | 443 ci [7.3 L] |
| Coolant capacity | 42 qts [39.7 L] |
| Bore/Stroke | 4.75x6.25 inches [121 x 159 mm] |
Transmission Information of Hart-Parr, 28-44
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 3 forward and 1 reverse |
Mechanical Specs of Hart-Parr, 28-44
- Two-wheel drive
- Manual steering
- Open operator station.
Power Information of Hart-Parr, 28-44
| Rear PTO Type | 540 |
|---|
Where it sits
With 48 hp[B] HP, the Hart-Parr 28-44 sits just above 18-28 (31 HP) in Hart-Parr's range. Its power puts it in the 76th percentile of 1930s models in our database (235 machines).
Frequently asked questions
How much horsepower does the Hart-Parr 28-44 have?
The Hart-Parr 28-44 delivers 48 hp[B] HP.
What years was the Hart-Parr 28-44 produced?
The Hart-Parr 28-44 was produced in 1930-1937.
What engine does the Hart-Parr 28-44 have?
The Hart-Parr 28-44 is powered by a 4-cylinder engine.
What transmission does the Hart-Parr 28-44 use?
The Hart-Parr 28-44 uses a Gear transmission.
How much does the Hart-Parr 28-44 weigh?
The Hart-Parr 28-44 weighs 6415 lbs [2909 kg].
Is the Hart-Parr 28-44 4WD?
The Hart-Parr 28-44 is available in 2WD.