Hefty farm tractors by series
Hefty tractors was a line of small tractors built in the United States in the mid 1970s. Hefty was a brand of the Holtan Axle and Transmission Company (HAXCO) of Wisconsin. Holtan registered the Hefty brand in 1974 and the tractors appeared in advertisements until 1978. Holtan went out of business in 2003.
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