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Tractor · 1929Unverified

Wallis 12-20

Name: Wallis 12-20
Brand: Wallis

Wallis 12-20 — Standard-tread tractor · 12 hp. Reference specifications; pending source verification.

The Wallis 12-20 is a tractor model with a rated power output of approximately 12 hp, positioning it at the lower end of its class in terms of power. It was manufactured from 1929 to 1932. The tractor is equipped with a 4-cylinder petrol liquid-cooled engine and a two-wheel drive system, paired with a 3-speed gearbox. Its operating weight is listed at 1567 kg, with an operating capacity of up to 200 acres.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

12 hp

Max power

13.5 kW

Weight

1567 kg

Catalogue coverage

Variants represented

Richest spec table

45 rows

Recorded power

12 hp

Recorded weight

1567 kg

Transmissions

3-speed gear

Production years

1929-1932

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

Hover a source tag to verify

Overview

ManufacturerWallis (a part of Massey-Harris)Reference

Standard-tread tractorReference

Built in Racine, Wisconsin, USAReference

Two-wheel driveReference

Manual steeringReference

Open operator station.Reference

Engine

Wallis 4.1L 4-cyl gasolineReference

Fuel tank56.8 LReference

Aux. fuel6.6 LReference

Drawbar (claimed)8.9 kWReference

Belt (claimed)14.9 kWReference

Plows2Reference

Drawbar (tested)13.5 kWReference

Belt (tested)18.0 kWReference

WallisReference

gasolineReference

4-cylinderReference

liquid-cooledReference

Displacement4.1 LReference

Bore/Stroke98 x 133 mmReference

Rated RPM1000Reference

Starter typehand-crankReference

Belt power (max)18.0 kWReference

Max power13.5 kWReference

Transmission

3-speed gearReference

TypegearReference

Gears3 forward and 1 reverseReference

Clutchdry discReference

Dimensions

Wheelbase198 cmReference

Weight1567 kgReference

Front tire28x5Reference

Rear tire44x10Reference

Ag front28x5 (steel)Reference

Ag rear44x10 (steel)Reference

Length307 cmReference

Width139 cmReference

Height129 cmReference

Capacities

Diameter43 cmReference

Width15 cmReference

RPM540Reference

Speed731.52 meters/minReference

Test results

Gasoline 3-speed 2WDJune 18 - 27, 1929Link: Nebraska Tractor Test 164 fileReference

Belt fuel use (max)9.5 l/hourReference

Drawbar performanceReference

Max pull1368 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.

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