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Engine:
Hart-Parr Standard
Power:
31 HP (Engine) / HP (PTO)
Fuel Type:
Diesel
Production:
1930 - 1936
| Overview | |
|---|---|
| Summary | x1930 - 1936 Standard-tread tractor |
| Production | |
|---|---|
| Manufacturer | Hart-Parr (a part of Oliver) |
| Summary | Standard-tread tractor / Built in Charles City, Iowa, USA |
| Variants | |
|---|---|
| 18-27 | row-crop |
| 18-28 | standard |
| Mechanical | |
|---|---|
| Summary | Two-wheel drive / Manual steering / Open operator station. |
| Belt Pulley | |
|---|---|
| Diameter | 14.25 inches 36 cm |
| Width | 7.25 inches 18 cm |
| RPM | 726 |
| Speed | 2709 ft/min 825.70 meters/min |
| References | |
|---|---|
| Summary | / Oliver Hart-Parr Tractors published in 1930 |
| Engine Detail | |
|---|---|
| Summary | Oliver / kerosene / 4-cylinder / liquid-cooled |
| Displacement | 280.6 ci 4.6 L |
| Bore/Stroke | 4.125x5.25 inches 105 x 133 mm |
| Coolant capacity | 32 qts 30.3 L |
| Transmission | |
|---|---|
| Type | gear |
| Gears | 3 forward and 1 reverse |
| Hart-Parr 18-28 Tires | |
|---|---|
| Ag front | 28x5 |
| Ag rear | 44x10 |
| Dimensions | |
|---|---|
| Wheelbase | 72.5 inches 184 cm |
| Length | 112 inches 284 cm |
| Width | 61 inches 154 cm |
| Height (hood) | 53.5 inches 135 cm |
| Shipping weight | 3800 lbs 1723 kg |
| Operating weight | 4165 lbs 1889 kg |
| Nebraska Tractor Test 180 | |
|---|---|
| Summary | Kerosene 3-speed 2WD July 7 - 15, 1930 Link: Nebraska Tractor Test 180 file |
| Belt power (max) | 30.29 hp 22.6 kW |
| Belt fuel use (max) | 3.0 gal/hour 11.4 l/hour |
| Summary | Drawbar performance |
| Max power | 23.56 hp 17.6 kW |
| Summary | Gear 1 used for power test. |
| Max pull | 3241 lbs 1470 kg |
| Summary | Gear 1 used for pull test. |
Last Database Update: 1/15/2026