OS-4 (1944-1954)

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Tractor Info


The OS-4 was manufactured in Rock Island, Illinois. It had an International Harvester 2.5L four-cylinder 4×2 2WD gasoline engine with five-speed gear transmission. Its variants included a W-4 standard, an O-4 orchard model, and an OS-4 orchard without full sheet metal.

Tractor Info

Engine: C-152

Cylinders: 4

Bore & Stroke: 3 3/8 x 4 1/4

RPM: 1650

CID: 152.1

Fuel: Gasoline

Main Fuel Tank Cap: 17.5

Aux Fuel Tank Cap:

Carburetor: 1' IH D-10 Downdraft

Cooling Capacity: 4.5

Drawbar HP: 22

Belt PTO HP: 24

Weight: 4120 lbs

Length: inches

Width: inches

Height: inches

Number of Gears: 5/1


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