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Tractor · 1936Unverified

Massey-Harris Challenger

Name: Massey-Harris Challenger
Brand: Massey-Harris

Massey-Harris Challenger — Row-Crop tractor · 20 hp. Reference specifications; pending source verification.

The Massey-Harris Challenger is a tractor model with a rated power output of 20 hp, positioning it within the lower power range. It was manufactured from 1936 to 1939. Specification includes a 4-cylinder petrol engine with liquid cooling, paired with two-wheel drive and a 4-speed gearbox. Operational details list an operating weight of 1769 kg, suitable for areas 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

20 hp

Max power

22.2 kW

Weight

1769 kg

Catalogue coverage

Variants represented

Richest spec table

44 rows

Recorded power

20 hp

Recorded weight

1769 kg

Transmissions

4-speed gear

Production years

1936-1939

Verified variants

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

Hover a source tag to verify

Overview

ManufacturerMassey-HarrisReference

Row-Crop tractorReference

Built in Racine, Wisconsin, USAReference

Total built14,000Reference

The Massey-Harris Challenger was the row-crop version of the Pacemaker. These tractors replaced the Wallis 12/20 in Massey's line. The Twin Power feature increased engine rpms to provide additional horsepower for belt work.Reference

Two-wheel driveReference

SteeringmanualReference

Open operator station.Reference

Engine

Massey-Harris 4.1L 4-cyl gasolineReference

Fuel tank68.1 LReference

Aux. fuel6.1 LReference

Drawbar (claimed)14.9 kWReference

Belt (claimed)23.9 kWReference

Drawbar (tested)22.2 kWReference

Belt (tested)26.0 kWReference

Massey-HarrisReference

gasolineReference

4-cylinderReference

liquid-cooled vertical I-headReference

Displacement4.1 LReference

Bore/Stroke98 x 133 mmReference

Rated RPM1200Reference

Rated RPM1400Reference

Coolant capacity18.9 LReference

Image courtesy of Cyrille BrouardReference

Belt power (max)26.0 kWReference

Max power22.2 kWReference

Transmission

4-speed gearReference

TypegearReference

Gears4 forward and 1 reverseReference

Dimensions

Wheelbase198 cmReference

Weight1769 kgReference

Front tire24x4.50Reference

Rear tire52x8.00Reference

Ag front24x4.50 (steel)Reference

Ag rear52x8.00 (steel)Reference

Ag front5.50x16Reference

Ag rear11.25x36Reference

Length328 cmReference

Height147 cmReference

Challenger Serial Number Location

On side of main tractor frame.Reference

Test results

Gasoline October 1937Reference

Belt fuel use (max)14.0 l/hourReference

Drawbar performanceReference

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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