Minneapolis-Moline Uni-Tractor (Uni-System power unit)
A three-wheeled self-propelled power unit, nicknamed the ‘Minneapolis-Moline Motorcycle,’ that mounted interchangeable harvesting machines so one tractor could do many jobs; powered by an M-M 206 cu. in. 4-cylinder gasoline engine. Built at Hopkins, Minnesota; the Uni-System design was sold to New Idea in 1963.
Sources & Verification Notes
Status: Verification pending
Primary source: Minneapolis-Moline Uni-Tractor (Uni-System power unit) (source) tier 5
Documented from Minneapolis-Moline literature and collector sources. Implement availability, model numbers, and fitment are configuration- and year-dependent — confirm against factory literature before purchase or restoration.