Comparing the Allis Chalmers HD21 and the International Harvester TD-20 200

This page provides a detailed comparison of the specifications for the Allis Chalmers HD21 and the International Harvester TD-20 200. Explore key differences and similarities across various aspects, including Power Output, Operating Weight and Cylinders.

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Allis Chalmers HD21 Tractor
Allis Chalmers HD21 Tractor
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International Harvester TD-20 200 Tractor
International Harvester TD-20 200 Tractor
International Harvester TD-20 200 Tractor
SpecificationAllis Chalmers HD21International Harvester TD-20 200
General Information
Manufacturer
Allis Chalmers
International Harvester
Model
HD21
TD-20 200
Engine
Manufacturer
Allis-Chalmers
International Harvester
Model
D-691
Power Output
225hp
134hp
Rated RPM
1,800RPM
1,550RPM
Cylinders
6
6
Displacement
844ci
691.1ci
Bore
5.25in
4.75in
Stroke
6.5in
6.5in
Transmission
Type
Torque Converter
Gear
Dimensions & Weight
Length
198in
Width
22in
Height
99in
Operating Weight
45,500lb
32,485lb
Electrical
Starter Type
Electric
Gasoline-start
Capacities
Coolant
80qts