Hart-Parr 28-50
The Hart-Parr 28-50 is a tractor produced by Hart Parr. It is equipped with a 675.1 ci 11.1 L engine. Transmission: 2 forward and 1 reverse. Operating weight: 8600 lbs 3900 kg.
Fuel & Capacities
Gasoline
Transmission
2 forward and 1 reverse
Operating Weight
8600 lbs
3900 kg
Overview
 | 1927 - 1930
Standard-tread tractor |
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Production | |
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Manufacturer | Hart-Parr |
Standard-tread tractor | |
Built in Charles City, Iowa, USA | |
Original price was $2,085 in 1930 | |
Hart-Parr 28-50 Engine | |
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Hart-Parr 11.1L 4-cyl gasoline | |
Engine details ...  |
Hart-Parr 28-50 Transmission | |
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2-speed gear | |
Transmission details ...  |
Hart-Parr 28-50 Power | |
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Drawbar (claimed) | 28 hp
20.9 kW |
Belt (claimed) | 50 hp
37.3 kW |
Drawbar (tested) | 46.03 hp
34.3 kW |
Belt (tested) | 64.56 hp
48.1 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two-wheel drive | |
Manual steering | |
Open operator station. |
Dimensions & Tires | |
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Weight | 8600 lbs
3900 kg |
Front tire | 28x7 |
Rear tire | 51x14 |
Full dimensions and tires ...  | |
Engine
Engine Detail — 675.1 ci / 11.1 L Gasoline
Manufacturer | Hart-Parr |
Fuel Type | Gasoline |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 675.1 ci
11.1 L |
Bore/Stroke | 5.75x6.50 inches
146 x 165 mm |
Air cleaner | dry |
Rated RPM | 850 |
Transmission
Transmission — 2 forward and 1 reverse gear
Type | gear |
Gears | 2 forward and 1 reverse |
Clutch | mechanical dry disc |
 | |
Dimensions
Hart-Parr 28-50 Tires | |
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Ag front | 28x7 steel |
Ag rear | 51x14 steel |
Dimensions | |
|---|---|
Weight | 8600 lbs
3900 kg |
Tests
Nebraska Tractor Test 140 | |
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Kerosene 2-speed 2WD
August 17 - 31, 1927
Link: Nebraska Tractor Test 140 file | |
Belt power (max) | 64.56 hp
48.1 kW |
Drawbar performance | |
Max power | 46.03 hp
34.3 kW |
Max pull | 7347 lbs
3332 kg |
Photos
Hart-Parr 28-50 New York Special, left side.
Hart-Parr 28-50 New York Special, right side.
Hart Parr Hart-Parr 28-50 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Hart Parr Hart-Parr 28-50.
Converted Equivalents:
Horsepower (HP)0 hp
Kilowatts (kW)0 kW
Metric Horsepower (PS / CV)0 PS
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