Tractor · 1930Unverified
Hart-Parr Row Crop 18-27
Hart-Parr Row Crop 18-27 — Row-Crop 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
13.5 kW
Weight
1587 kg
Hover a source tag to verify
Overview
ManufacturerHart-Parr (a part of Oliver)Reference
Row-Crop tractorReference
Built in Charles City, Iowa, USAReference
Introduced in 1930, the Oliver Hart-Parr Row Crop featured a single front wheel during the first two production years. In 1931, the design changed to use two front wheels.Reference
Two-wheel driveReference
Final drivesspur gearReference
Manual steeringReference
Open operator station.Reference
Variants
18-27row-cropReference
18-28standardReference
Engine
Oliver 4.6L 4-cyl keroseneReference
Drawbar (claimed)13.4 kWReference
Belt (claimed)20.1 kWReference
Plows2-3 (14-inch)Reference
Drawbar (tested)13.5 kWReference
Belt (tested)22.2 kWReference
OliverReference
keroseneReference
4-cylinderReference
liquid-cooledReference
Displacement4.6 LReference
Bore/Stroke105 x 133 mmReference
Belt power (max)22.2 kWReference
Max power13.5 kWReference
Transmission
3-speed gearReference
TypegearReference
Gears3 forward and 1 reverseReference
Dimensions
Weight1587 kgReference
Length317 cmReference
Width203 cmReference
Height162 cmReference
Rear tread152 to 187 cmReference
Capacities
Diameter36 cmReference
Width19 cmReference
RPM700Reference
Speed795.53 meters/minReference
Test results
Kerosene 3-speed 2WDApril 14 - 24, 1930Link: Nebraska Tractor Test 176 fileReference
Belt fuel use (max)11.7 l/hourReference
Drawbar performanceReference
Fuel use9.1 l/hourReference
Gear 2 used for power test.Reference
Max pull1661 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.