The International Harvester DF-25 is a tractor with a rated power output of approximately 25 hp, positioning it at the lower end of its class. It was produced from 1951 to 1953. The tractor is equipped with a 4-cylinder diesel liquid-cooled engine, coupled with two-wheel drive and a 4-speed gearbox. It is designed for use on 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
25 hp
Catalogue coverage
Variants represented
2
Richest spec table
34 rows
Recorded power
25 hp
Transmissions
4-speed gear
Production years
1951-1953
Verified variants
0
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Overview
ManufacturerInternational HarvesterReference
Standard-tread tractorReference
Built in Neuss, GermanyReference
Total built3,500Reference
Two-wheel driveReference
Open operator station.Reference
Engine
International Harvester 2.0L 4-cyl dieselReference
Fuel tank43.1 LReference
Engine18.6 kWReference
International HarvesterReference
dieselReference
4-cylinderReference
liquid-cooledReference
Displacement2.0 LReference
Bore/Stroke80 x 102 mmReference
Power18.6 kWReference
Compression19:1Reference
Rated RPM1800Reference
Starter volts12Reference
Oil capacity6.0 LReference
Coolant capacity15.5 LReference
Transmission
4-speed gearReference
TypegearReference
Gears4 forward and 1 reverseReference
PTO & Hydraulics
Rear PTO Type540 (1.375)Reference
Dimensions
Wheelbase198 cmReference
Front tire5.00-16Reference
Rear tire11.25-24Reference
Ag front5.00-16Reference
Ag rear11.25-24Reference
Length320 cmReference
Width164 cmReference
Height160 cmReference
Speeds
With 11.25-24 rear tires.Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.
