Leader 25-40
The Leader 25-40 is a tractor produced by Leader. It is equipped with a 792 ci 13.0 L engine. Transmission: 2 forward and 1 reverse. Drive type: half-track. Operating weight: 6000 lbs 2721 kg.
Drive & Traction
half-track
Fuel & Capacities
18 gal
68.1 L
Transmission
2 forward and 1 reverse
Operating Weight
6000 lbs
2721 kg
Overview
 | 1916 - 1920
Agricultural Crawler tractor |
|---|
Production | |
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Manufacturer | Leader (a part of Dayton-Dick) |
Agricultural Crawler tractor | |
Built in Quincy, Illinois, USA | |
Original price was $1,550 in 1916 | |
Leader 25-40 Engine | |
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13.0L 4-cyl kerosene | |
Fuel tank | 18 gal
68.1 L |
Engine details ...  | |
Leader 25-40 Transmission | |
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2-speed gear | |
Transmission details ...  |
Leader 25-40 Power | |
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Drawbar (claimed) | 25 hp
18.6 kW |
Belt (claimed) | 40 hp
29.8 kW |
Mechanical | |
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Drive | half-track |
Manual steering | |
Open operator station. | |
Dimensions & Tires | |
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Weight | 6000 lbs
2721 kg |
Full dimensions and tires ...  | |
Belt Pulley | |
|---|---|
Diameter | 14 inches
35 cm |
Width | 7 inches
17 cm |
Engine
Engine Detail — 792 ci / 13.0 L Kerosene
Fuel Type | Kerosene |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 792 ci
13.0 L |
Bore/Stroke | 6.00x7.00 inches
152 x 178 mm |
Fuel system | Kingston-Bennett carburetor |
Rated RPM | 750 |
Starter type | hand crank |
Transmission
Transmission — 2 forward and 1 reverse gear
Type | gear |
Gears | 2 forward and 1 reverse |
Dimensions
Leader 25-40 Tires |
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Dimensions | |
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Weight | 6000 lbs
2721 kg |
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Leader 25-40.
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Leader 25-40 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Leader 25-40.
Converted Equivalents:
Horsepower (HP)0 hp
Kilowatts (kW)0 kW
Metric Horsepower (PS / CV)0 PS
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