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Leader D 25-40

From the same series:

Introduction

Discover the robust 1920 D 25-40 tractor, a testament to early agricultural engineering. This half-track crawler tractor, manufactured by Leader, offers a powerful 44 horsepower output, perfect for demanding farm tasks. It features a liquid-cooled, 4-cylinder Doman engine with a substantial 792 cubic inch displacement and a Holley carburetor, designed for reliable kerosene fuel use. The transmission includes 2 forward and 1 reverse gear, complemented by a manual steering system and an open operator station with a four-post canopy for driver comfort. With a drawbar horsepower of 25 hp and belt horsepower of 40 hp, this tractor is capable of handling plows and other essential farm implements. Its sturdy build includes a weight of 6500 lbs and dimensions of 153 inches in length and 64 inches in width, making it a formidable presence in the field. Originally priced at $2,895 in 1920, this historic tractor represents a significant piece of farming innovation from Quincy, Illinois, USA.

Introduction

Production Information of Leader, D 25-40

The production information of the tractor (D 25-40) includes details about its manufacturing.

Original price was $2,895 in 1920

Half-track Crawler tractor

Built in Quincy, Illinois, USA


Manufacturer	Leader (a part of Dayton-Dick)

Dimension and Tires Information of Leader, D 25-40

This section sums up the dimension and tires information of the tractor.


Length	153 inches [388 cm]
Weight	6500 lbs [2948 kg]
Width	64 inches [162 cm]
Height	96 inches [243 cm]


Ag rear	Tracks

Engine Specifications of Leader, D 25-40

Get the specifications for the engine and if different options are available.

Doman

Liquid-cooled

Kerosene

4-cylinder


Fuel system	Holley carburetor
Displacement	792 ci [13.0 L]
Rated RPM	750
Bore/Stroke	6.00x7.00 inches [152 x 178 mm]
Starter type	Hand crank

Transmission Information of Leader, D 25-40Y

Discover all variants of transmission available for this tractor model.

Transmission variants 1


Type	Gear
Gears	2 forward and 1 reverse

Mechanical Specs of Leader, D 25-40Y

This section summarizes all mechanical information such as the brake system and other specifications.

Manual steering

Open operator station with four-post canopy.


Drive	Half-track

Power Information of Leader, D 25-40Y

Discover the power specifications and options available for this tractor model but also PTO (Power Take-off) information.


Drawbar (claimed)	25 hp [18.6 kW]
Belt (claimed)	40 hp [29.8 kW]
Plows	5-6 (14-inch)