Comparing the Allis Chalmers HD20 and the International Harvester TD-25 Series 250

This page provides a detailed comparison of the specifications for the Allis Chalmers HD20 and the International Harvester TD-25 Series 250. Explore key differences and similarities across various aspects, including Operating Weight, Cylinders and Type.

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Allis Chalmers HD20 Tractor
Allis Chalmers HD20 Tractor
Allis Chalmers HD20 Tractor
Allis Chalmers HD20 Tractor
Allis Chalmers HD20 Tractor
Allis Chalmers HD20 Tractor
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International Harvester TD-25 Series 250 Tractor
International Harvester TD-25 Series 250 Tractor
International Harvester TD-25 Series 250 Tractor
SpecificationAllis Chalmers HD20International Harvester TD-25 Series 250
General Information
Manufacturer
Allis Chalmers
International Harvester
Model
HD20
TD-25 Series 250
Category
Industrial
Crawler
Engine
Manufacturer
General Motors
International Harvester
Rated RPM
1,700RPM
1,500RPM
Cylinders
6
6
Displacement
660ci
817ci
Bore
5in
5.38in
Stroke
5.6in
6in
Transmission
Type
Torque converter
Two-speed power shift
Dimensions & Weight
Length
191in
196.88in
Width
104in
Height
95in
128.1in
Operating Weight
41,000lb
45,550lb
Hitch & Towing
Hitch Category
Category 3
Electrical
Starter Type
24 volts
Electric
Capacities
Coolant
15gal
18.63gal