20,175 Cubic Inch Single Cylinder Engine - Running

The De La Vergne Engine Works built this 125 HP, 40 ton engine in 1903. It is believed to be the largest running single cylinder four-cycle open crankcase engine in existence.
It is rated at 125 HP and 4100 ft-lbs. of torque at 160 RPM
Runs on Oil.
Bore and stroke: 26" x 38"
Displacement: 20,175 Cubic Inches.(330 Liters)
The base and cylinder weigh 20 tons.
The dual 9 foot flywheels and crankshaft together weigh 15 tons.
The main bearing caps weigh 700 Lbs.

It was on display at the 1904 World's Fair in St. Louis, Missouri.

After the 1904 World's Fair, it was installed in the W.F. Norman Sheet Metal Works in Nevada, Mo. where it was used for fifty years.

It was purchased in 1976 by the Withers family and moved to the Western Minnesota Steam Thresher's Reunion show grounds in Rollag, MN, where it can be viewed every Labor Day Weekend.

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