Tractor & Construction Plant Wiki
Allis-Chalmers HD-21 crawler
AC HD-21 crawler brochure.jpg
Model history
Model introduced 1954
Model discontinued 1975
Model status Discontinued
Engine Specification
Engine make Allis-Chalmers
Fuel type Diesel
Power hp 204
Power kW 152
Cooling system Water
Transmission Details
Transmission type Unknown
Drive tracked
Linkage Category Unknown
Other info
Factories USA
Plow rating Unknown
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The Allis-Chalmers HD-21 crawler tractor was built in the USA by Allis-Chalmers. It features a 204 hp (152 kW) Allis-Chalmers engine.

Model history

For brand history, see Allis-Chalmers.


External links