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Years in Production / 1930–1936

Hart-Parr

18-28

Explore the specifications, hardware, and original references for the Hart-Parr 18-28.

31hp

Engine estimate · from belt

2WD Only

Drive

1930–1936

Production years

Hart-Parr

Manufacturer

18-28 / 01

At a glance

Production

Standard-tread tractor

Built in Charles City, Iowa, USA

Manufacturer: Hart-Parr (a part of Oliver)

Belt Pulley

Diameter: 14.25 inches36 cm
Width: 7.25 inches18 cm
Rpm: 726
Speed: 2709 ft/min825.70 meters/min

Mechanical

Two-wheel drive

Manual steering

Open operator station.

18-28 / 02

Under the hood

Engine Detail

Oliver

kerosene

4-cylinder

liquid-cooled

Displacement: 280.6 ci4.6 L
Bore Stroke: 4.125x5.25 inches105 x 133 mm
Coolant Capacity: 32 qts30.3 L
Fuel Type: kerosene
Cylinders: 4
Cooling: liquid-cooled

Engine Options

Oliver 4.6L 4-cyl kerosene

Fuel Tank: 14 gal53.0 L
Aux Fuel: 1 gal3.8 L

18-28 / 03

Gears & controls

Transmission

Transmission Type: gear
Gears: 3 forward and 1 reverse

18-28 / 04

Size. Stance. Footprint.

Dimensions

Length: 112 in284 cm
Width: 61 in154 cm
Height: 53.5 in135 cm
Wheelbase: 72.5 in184 cm

TractorSpecs source ↗

Dimensions And Tires

Wheelbase: 72.5 inches184 cm
Weight: 3800 to 4165 pounds
Front Tire: 28x5
Rear Tire: 44x10

Tires And Tracks

Front Ag: 28x5
Rear Ag: 44x10

18-28 / 05

Tractor Photos

18-28 / 06

Tests (NTTL)

Nebraska Tractor Test 180Nebraska test report ↗

Kerosene 3-speed 2WDJuly 7 - 15, 1930

Drawbar performance

Gear 1 used for power test.

Gear 1 used for pull test.

Id: 180
Belt Power Max: 30.29 hp22.6 kW
Belt Fuel Use Max: 3.0 gal/hour11.4 l/hour
Max Power: 23.56 hp17.6 kW
Max Pull: 3241 lbs1470 kg