1912-1920

Joliet Oil Tractor Company was building the Bates Steel Mule Model D in 1918, a year before Bates Machine & Tractor Company was formed. Weighing only 4,900 pounds, the Model D had a four-cylinder motor with a 4-inch bore and 6-inch stroke and featured an enclosed transmission and final drives. By 1920, Bates put in a larger Erd four-cylinder motor and pepped up the Model D to a 15-22 horsepower rating. Test No. 60 at Nebraska revealed a maximum drawbar pull of 2,996 pounds.

Engine: ERD Vertical Valve In Head

Cylinders: 4

Bore & Stroke: 4.50x6.00

RPM: 1,100

CID:

Fuel: Kerosene

Main Fuel Tank Cap:

Aux Fuel Tank Cap:

Carburetor: Bennett Model J

Cooling Capacity:

Drawbar HP: 20.66

Belt PTO HP: 25

Weight: 4,900 lbs

Length: inches

Width: inches

Height: inches

Number of Gears: 2/1

Options: