1918-1922

Allis-Chalmers announced the new 15-30 tractor in December, 1918. Its sleek lines bore a resemblance to auto and truck designs, and in fact, this was a major goal of A-C engineers. However, by February, 1919, the company had given it a new 18-30 rating to better correspond with its delivered output. Although the general consensus exists that the 15-30 and 18-30 tractors were identical, save for the new model designation, a comparison shows this notion to be in error. One notable difference is the sheet metal radiator of this model, compared to the cast iron style of the 18-30. Also evident is an entirely different front wheel design.

Engine: AC Vertical

Cylinders: 4

Bore & Stroke: 4.75 x 6.50

RPM: 830

CID: 460.7

Fuel: Kerosene/Gasoline

Main Fuel Tank Cap: 25

Aux Fuel Tank Cap: 7.75

Carburetor: Kingston Dual

Cooling Capacity: 10

Drawbar HP: 20.55

Belt PTO HP: 33.41

Weight: 6,000 lbs

Length: 135 inches

Width: 66 inches

Height: 68 inches

Number of Gears: 2/1

Options:

Total Produced: 1,160

1918: 5000

1919: 5006

1920: 5161

1921: 6015

1922: None

Location: Metal tag on transmission case forward of gear shift