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CO-OP tractors by power

CO-OP Tractor History

CO-OP E4 tractorThe CO-OP brand of tractors was born out of a desire by farmers to reduce cost through collective ownership of machinery production. Early models were designed by Dent Parrett, formely of Parrett Tractor, and built in Michigan using a number of Chrysler components. In 1938, production moved to new facilities in Indiana. Cletrac also contributed a few models and some production occured in Saint Paul, Minnesota, at this time. After World War II, an arrangement with Cockshutt led to the new "E" series of CO-OP tractors which were simply re-branded Cockshutt models. Poor sales led to the CO-OP facilities being sold to Cockshutt in 1952, and the CO-OP brand was discontinued.

CO-OP history - article at Lancaster Farming

B120 hp1941 - 1942
G20 hp1939 - 1941
E331 hp1946 - 1957
E233 hp1952 - 1953
235 hp1936 - 1946
B2 Jr.37 hpunknown
341 hp1936 - 1950
E447 hp1949 - 1958
E554 hp1953 - 1957
1unknown1937 - 1938
3Sunknown1948 - 1951
B2unknown1939 - 1941
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