The Allis-Chalmers HD-20, last of A-C’s GM-powered Crawlers
A big tractor in its day, The Allis-Chalmers HD-20 was another part of the power struggle that took place between Allis-Chalmers and International-Harvester during the
Tag : Buda Engine Company
Classic Machines: The Allis-Chalmers HD-6 tractor
For a period of just under 20 years (1955-1974), Allis-Chalmers produced one of the most popular small track type tractors ever built, the model HD-6.
Classic Machines: The Allis-Chalmers HD-21 tractor
Developed directly from their model HD-20 (introduced 1951), the HD-21 featured among other things, one of the diesel engines from the recently acquired Buda Engine