Allis Chalmers B Price, Specs, Review, Horsepower, Weight, Engine Oil Capacity, Implements, History & Pictures The Allis-Chalmers model B was a Row-Crop tractor manufactured by the Allis-Chalmers company from 1937 to 1957. With a number of 125,000 units produced, Allis-Chalmers model B became one of the best selling tractors for Allis-Chalmers and most desired tractors … [Read more...] about Allis Chalmers B Horsepower, Price, Specs, Review & Implements