Hart-Parr 28-50

Hart-Parr 28-50 Technical Specifications

Hart-Parr 28-50 is a Row-Crop tractor that was produced by the John Deere between 1927 – 1930.

Below you will find detailed technical specifications for Hart-Parr 28-50 covering engine types, horsepower ratings, weight, height, fuel type and tank volume, oil capacity and type, hydraulic system diagram, wiring diagram, battery specs, etc.

Hart-Parr 28-50 Production

Manufacturer: Hart-Parr
Type: Standard-tread tractor
Factory: Charles City, Iowa, USA
Original price: $2,085 (1930 )

Hart-Parr 28-50 Power

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

Hart-Parr 28-50 Mechanical

Chassis: 4×2 2WD
Steering: manual
Cab: Open operator station.
Transmission: 2-speed gear

Hart-Parr 28-50 Engine detail

Engine Detail
Displacement: 675.1 ci
11.1 L
Bore/Stroke: 5.75×6.50 inches
146 x 165 mm
Air cleaner: dry
Rated RPM: 850

Hart-Parr 28-50 Transmission overview

Engine Oil

Type: gear
Gears: 2 forward and 1 reverse
Clutch: mechanical dry disc

Hart-Parr 28-50 Dimensions

Weight: 8600 lbs
3900 kg

Hart-Parr 28-50 Tests

Nebraska Tractor Test 140
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


Is Hart-Parr 28-50 a good tractor?

The Hart-Parr 28-50 is one of the great tractors in the Hart-Parr stable, and it has earned Hart-Parr a fantastic reputation.

How much oil does a Hart-Parr 28-50 take?

Check out the Hart-Parr 28-50 oil capacity and oil type in the engine specs section as it may vary across the engines. Keep in mind, that older models might have their oil capacity increased over time. You may compare between the early and late oil capacity.

Do tractors have VIN numbers?

Every tractor has a VIN number. The number is usually engraved below the driver’s seat. Tractor manufacturers put the number in different places on the tractor body.

What was the last year Hart-Parr made the ?

The Hart-Parr 28-50 was an agricultural tractor model made from 1927 – 1930

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