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Tractor · 1920Unverified

Leader D 25-40

Name: Leader D 25-40
Brand: Leader

Leader D 25-40 — Half-track Crawler tractor · 25 hp. Reference specifications; pending source verification.

The Leader D 25-40 is a tractor model rated at approximately 25 hp, positioning it at the lighter end of its class. First produced in 1920, it features a 4-cylinder liquid-cooled engine paired with a tracked undercarriage and a 2-speed gearbox. The tractor has a listed operating weight of 2948 kg, and it is suitable for operations covering up to 200 acres.

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

Rated power

25 hp

Weight

2948 kg

Catalogue coverage

Variants represented

Richest spec table

33 rows

Recorded power

25 hp

Recorded weight

2948 kg

Transmissions

2-speed gear

Production years

1920-1920

Verified variants

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

Hover a source tag to verify

Overview

ManufacturerLeader (a part of Dayton-Dick)Reference

Half-track Crawler tractorReference

Built in Quincy, Illinois, USAReference

Original price was $2,895 in 1920Reference

Drivehalf-trackReference

Manual steeringReference

Open operator station with four-post canopy.Reference

Engine

Doman 13.0L 4-cyl keroseneReference

Drawbar (claimed)18.6 kWReference

Belt (claimed)29.8 kWReference

Plows5-6 (14-inch)Reference

DomanReference

keroseneReference

4-cylinderReference

liquid-cooledReference

Displacement13.0 LReference

Bore/Stroke152 x 178 mmReference

Fuel systemHolley carburetorReference

Rated RPM750Reference

Starter typehand crankReference

Transmission

2-speed gearReference

TypegearReference

Gears2 forward and 1 reverseReference

Dimensions

Weight2948 kgReference

Rear tiretracksReference

Ag reartracksReference

Length388 cmReference

Width162 cmReference

Height243 cmReference

Capacities

Diameter35 cmReference

Width20 cmReference

RPM750Reference

Speed838.20 meters/minReference

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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