Interstate Engine & Tractor Co.

15-30 Plow Man (1919)

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Tractor Info


Interstate also offered a 15-30 model known as the Plow Man “ 30”. It was nearly identical to the 10-20 but used a Buda 4 1/4 x 5 1/2 inch four-cylinder engine, and was capable of a 3,500-pound drawbar pull. Interstate was again reorganized about 1919 as Plow Man Tractor Company, but the firm never recovered from its financial troubles and folded shortly after. Throughout its life, the company appeared to be somewhat affiliated with Grand Forks Tractor Company of Grand Forks, N.D., Grand Forks acted as a distributor for the Plow Man line, and may even have marketed some of these units under the “ Grand Forks” name.

Tractor Info

Engine: Buda

Cylinders: 4

Bore & Stroke: 4 1/4 x 5 1/2




Main Fuel Tank Cap:

Aux Fuel Tank Cap:


Cooling Capacity:

Drawbar HP:

Belt PTO HP:

Weight: lbs

Length: inches

Width: inches

Height: inches

Number of Gears:


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