*United, introduced the Model U. First tractor with low pressure pneumatic tires in 1929
*Model B is a small tractor in the 20 hp class popular in the UK, introduced in 1937.
* Model C - an upgrade of the Model B with slightly more hp, introduced in 1940.
* Model G - an unusual cultivation tractor.
* Model WD-45 is perhaps the most significant tractor developed by Allis-Chalmers. First model with optional diesel power, first model with power steering option. Introduced in 1953.
* D Series - a comprehensive range of tractors
* Hundred Series - followed the D Series
* compact series - Several were built in Japan by Toyosha/Hinomoto
* Utility Series - Some built in Italy by Fiat, some in France by Renault.
* 4WD Series - 4WD models, some of which were built by Steiger.