Hart-Parr
Hart-Parr New Hart-Parr
The Hart-Parr New Hart-Parr is a standard-tread farm tractor produced by Hart-Parr from 1918 to 1919 in Charles City, Iowa, USA. It features a 7.6L 2-cylinder liquid-cooled gasoline engine producing an estimated 33.3 hp, with claimed drawbar power of 15 hp and belt power of 30 hp. The tractor has a 2-speed gear transmission with 2 forward and 1 reverse gears, two-wheel drive with bull gear final drives, and manual steering. It weighs 5158 lbs and rides on steel tires sized 28x5 front and 52x10 rear. The open operator station and robust mechanical design made it a notable tractor of its era. The New Hart-Parr was succeeded by the Hart-Parr 30 model produced from 1919 to 1924.
Power33 hp[B]
Founded1918 - 1919
ModelNew Hart-Parr
Technical Specifications
Detailed specifications and technical data for Hart-Parr New Hart-Parr
Power
| Plows | 3 |
|---|---|
| Belt (claimed) | 30 hp (22.4 kW) |
| Drawbar (claimed) | 15 hp (11.2 kW) |
Tires
| Rear tire | 52x10 (steel) |
|---|---|
| Front tire | 28x5 (steel) |
Engine
| Type | gasoline |
|---|---|
| Model | Hart-Parr 7.6L 2-cyl gasoline |
| Cooling | liquid-cooled |
| Cylinders | 2-cylinder |
| Rated RPM | 750 |
| Bore/Stroke | 6.50x7.00 inches (165 x 178 mm) |
| Displacement | 464.6 ci (7.6 L) |
Dimensions
| Width | 75 inches (190 cm) |
|---|---|
| Height | 60 inches (152 cm) |
| Length | 138 inches (350 cm) |
| Weight | 5158 lbs (2339 kg) |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Steering | Manual steering |
| Final drives | bull gear |
| Operator station | Open operator station |
Production
| Type | Standard-tread tractor |
|---|---|
| Built in | Charles City, Iowa, USA |
| Manufacturer | Hart-Parr |
| Years produced | 1918 - 1919 |
Transmission
| Type | gear |
|---|---|
| Gears | 2 forward and 1 reverse |
Serial Numbers
| 1918 | 8401 |
|---|---|
| 1919 | 9383 |
| Final | 11499 |