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Years in Production / 1927–1930

Hart-Parr

28-50

Explore the specifications, hardware, and original references for the Hart-Parr 28-50.

Hart-Parr 28-50 Australian Special tractor VA1 — Acroterion, CC BY-SA 4.0. Resized; converted to WebP. · Acroterion · CC BY-SA 4.0 commons.wikimedia.org source ↗

55hp

Engine estimate · from belt

2WD Only

Drive

1927–1930

Production years

Hart-Parr

Manufacturer

28-50 / 01

At a glance

Production

Standard-tread tractor

Built in Charles City, Iowa, USA

Original price was $2,085 in 1930

Manufacturer
Hart-Parr

Mechanical

Two-wheel drive

Manual steering

Open operator station.

28-50 / 02

Under the hood

Engine Detail

Hart-Parr

gasoline

4-cylinder

liquid-cooled

Displacement
675.1 ci11.1 L
Bore Stroke
5.75x6.50 inches146 x 165 mm
Air Cleaner
dry
Rated Rpm
850
Fuel Type
gasoline
Cylinders
4
Cooling
liquid-cooled

28-50 / 03

Gears & controls

Transmission

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

28-50 / 04

Size. Stance. Footprint.

Dimensions And Tires

Weight
8600 lbs3900 kg
Front Tire
28x7
Rear Tire
51x14

Tires And Tracks

Front Ag
28x7 steel
Rear Ag
51x14 steel

28-50 / 05

Tractor Photos

Hart-Parr 28-50 Australian Special tractor VA1 — Acroterion, CC BY-SA 4.0. Resized; converted to WebP. · Acroterion · CC BY-SA 4.0 commons.wikimedia.org source ↗

28-50 / 06

Tests (NTTL)

Nebraska Tractor Test 140Nebraska test report ↗

Kerosene 2-speed 2WDAugust 17 - 31, 1927

Drawbar performance

Id
140
Belt Power Max
64.56 hp48.1 kW
Max Power
46.03 hp34.3 kW
Max Pull
7347 lbs3332 kg

Hart-Parr 28-50 · photo 1 / 1

Hart-Parr 28-50 Australian Special tractor VA1

Hart-Parr 28-50 Australian Special tractor VA1 — Acroterion, CC BY-SA 4.0. Resized; converted to WebP. · Acroterion · CC BY-SA 4.0 commons.wikimedia.org source ↗