Tractor · 1930Unverified
Hart-Parr 18-28
Hart-Parr 18-28 — Standard-tread tractor · 18 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
18 hp
Max power
17.6 kW
Weight
3800 to 4165 pounds
Hover a source tag to verify
Overview
ManufacturerHart-Parr (a part of Oliver)Reference
Standard-tread tractorReference
Built in Charles City, Iowa, USAReference
Two-wheel driveReference
Manual steeringReference
Open operator station.Reference
Variants
18-27row-cropReference
18-28standardReference
Engine
Oliver 4.6L 4-cyl keroseneReference
Fuel tank53.0 LReference
Aux. fuel3.8 LReference
Drawbar (claimed)13.4 kWReference
Belt (claimed)20.9 kWReference
Drawbar (tested)17.6 kWReference
Belt (tested)22.6 kWReference
OliverReference
keroseneReference
4-cylinderReference
liquid-cooledReference
Displacement4.6 LReference
Bore/Stroke105 x 133 mmReference
Coolant capacity30.3 LReference
Belt power (max)22.6 kWReference
Max power17.6 kWReference
Transmission
3-speed gearReference
TypegearReference
Gears3 forward and 1 reverseReference
Dimensions
Wheelbase184 cmReference
Weight3800 to 4165 poundsReference
Front tire28x5Reference
Rear tire44x10Reference
Ag front28x5Reference
Ag rear44x10Reference
Length284 cmReference
Width154 cmReference
Height (hood)135 cmReference
Shipping weight1723 kgReference
Operating weight1889 kgReference
Capacities
Diameter36 cmReference
Width18 cmReference
RPM726Reference
Speed825.70 meters/minReference
Test results
Kerosene 3-speed 2WDJuly 7 - 15, 1930Link: Nebraska Tractor Test 180 fileReference
Belt fuel use (max)11.4 l/hourReference
Drawbar performanceReference
Gear 1 used for power test.Reference
Max pull1470 kgReference
Gear 1 used for pull test.Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.