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Engine:
Hart-Parr Standard
Power:
44 HP (Engine) / HP (PTO)
Fuel Type:
Diesel
Production:
1923 - 1927
| Overview | |
|---|---|
| Summary | x1923 - 1927 Standard-tread tractor |
| Production | |
|---|---|
| Manufacturer | Hart-Parr |
| Summary | Standard-tread tractor / Built in Charles City, Iowa, USA / Original price was $2,250 in 1927 |
| Mechanical | |
|---|---|
| Summary | Two-wheel drive / Manual steering / Open operator station. |
| Belt Pulley | |
|---|---|
| Diameter | 14 inches 35 cm |
| Width | 9 inches 22 cm |
| RPM | 800 |
| Speed | 2750 ft/min 838.20 meters/min |
| Engine Detail | |
|---|---|
| Summary | Hart-Parr / gasoline / 4-cylinder / liquid-cooled / The Hart-Parr 22-40 used a pair of two-cylinder engine blocks from the 20C on a single crankshaft to create the four-cylinder engine. Early models used two carburetors while later models had a single carburetor to feed both blocks. |
| Displacement | 617.7 ci 10.1 L |
| Bore/Stroke | 5.50x6.50 inches 140 x 165 mm |
| Rated RPM | 800 |
| Transmission | |
|---|---|
| Type | gear |
| Gears | 2 forward and 1 reverse |
| Clutch | mechanical contracting band |
| Hart-Parr 40 Tires | |
| Ag front | 28x5 (steel) |
| Ag rear | 52x13 (steel) |
| Dimensions | |
| Length | 140 inches 355 cm |
| Width | 96 inches 243 cm |
| Height | 67 inches 170 cm |
| Weight | 7500 lbs 3402 kg |
| Nebraska Tractor Test 97 | |
| Kerosene 2-speed 2WD July 10 - 19, 1923 Link: Nebraska Tractor Test 97 file | |
| Belt power (max) | 46.40 hp 34.6 kW |
| Belt fuel use (max) | 6.3 gal/hour 23.8 l/hour |
| Drawbar performance | |
| Max power | 28.23 hp 21.1 kW |
| Max pull | 4830 lbs 2190 kg |
Last Database Update: 8/31/2025