Gas Traction Co.

Big Four (1910-1915)

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Tractor Info


By 1910 Gas Traction Company billed itself as the “first and largest builders in the world of four-cylinder farm tractors”. The “Big 4” soon won several medals at various fairs and expositions. The automatic plowing guide ran in the furrow and freed the operator for other duties. This was a valuable feature when the furrows were a mile or more in length. After Emerson-Brantingham bought out Gas Traction, the Big 4 “Thirty” was built for several years. By 1915, most of the prairies had been broken up and the big tractor market declined.

Tractor Info


Cylinders: 4

Bore & Stroke: 6.5 x 5




Main Fuel Tank Cap:

Aux Fuel Tank Cap:


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Drawbar HP:

Belt PTO HP:



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