Tractor · 1927Unverified
Wallis 20-30
Wallis 20-30 — Standard-tread tractor · 20 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
20 hp
Max power
20.1 kW
Weight
1876 kg
Hover a source tag to verify
Overview
ManufacturerWallis (a part of J.I. Case Plow Works)Reference
Standard-tread tractorReference
Built in Racine, Wisconsin, USAReference
Two-wheel driveReference
SteeringmanualReference
Open operator station.Reference
Engine
Wallis 5.7L 4-cyl gasolineReference
Fuel tank75.7 LReference
Aux. fuel6.6 LReference
Drawbar (claimed)14.9 kWReference
Belt (claimed)22.4 kWReference
Plows3Reference
Drawbar (tested)20.1 kWReference
Belt (tested)26.3 kWReference
WallisReference
gasolineReference
4-cylinderReference
liquid-cooledReference
Displacement5.7 LReference
Bore/Stroke111 x 146 mmReference
Rated RPM1050Reference
Starter typehand-crankReference
Belt power (max)26.3 kWReference
Max power20.1 kWReference
Transmission
2-speed gearReference
TypegearReference
Gears2 forward and 1 reverseReference
Clutchdry discReference
Dimensions
Wheelbase213 cmReference
Weight1876 kgReference
Rear tire48x12Reference
Ag rear48x12 (steel)Reference
Length334 cmReference
Height139 cmReference
Capacities
Diameter48 cmReference
Width17 cmReference
RPM475Reference
Test results
Gasoline 2-speed 2WDApril 29 - May 10, 1927Link: Nebraska Tractor Test 134 fileReference
Belt fuel use (max)15.9 l/hourReference
Drawbar performanceReference
Max pull1546 kgReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.