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Years in Production / 1944–1953
McCormick-Deering
OS-4
Explore the specifications, hardware, and original references for the McCormick-Deering OS-4.
No photo
30hp
Engine estimate · from belt
2WD Only
Drive
1944–1953
Production years
McCormick-Deering
Manufacturer
OS-4 / 01
At a glance
Production
Built in Rock Island, Illinois, USA
- Manufacturer
- McCormick-Deering
Pto
- Rear Type
- 540
Belt Pulley
- Diameter
- 9.75 inches24 cm
- Width
- 7.5 inches19 cm
- Rpm
- 1019
- Speed
- 2601 ft/min792.78 meters/min
Mechanical
Two-wheel drive
Manual steering
Open operator station.
OS-4 / 02
Under the hood
Engine Detail
International Harvester
gasoline
4-cylinder
liquid-cooled
- Displacement
- 152.1 ci2.5 L
- Bore Stroke
- 3.375x4.45 inches86 x 113 mm
- Air Cleaner
- oil bath
- Compression Ratio
- 5.9:1 (high-compression gasoline)
- Compression Ratio
- 4.75:1 (gasoline-distillate)
- Compression Ratio
- 4.5:1 (kerosene)
- Rated Rpm
- 1650
- Firing Order
- 1-3-4-2
- Oil Capacity
- 6 qts5.7 L
- Coolant Capacity
- 17 qts16.1 L
- Fuel Type
- gasoline
- Cylinders
- 4
- Cooling
- liquid-cooled
Engine Options
International Harvester 2.5L 4-cyl gasoline
- Fuel Tank
- 17.5 gal66.2 L
- Aux Fuel
- 0.75 gal2.8 L
OS-4 / 03
Gears & controls
Transmission
- Transmission Type
- gear
- Gears
- 5 forward and 1 reverse
- Oil Capacity
- 24 qts22.7 L
OS-4 / 04
Size. Stance. Footprint.
Dimensions
- Length
- 120.88 in307 cm
- Width
- 55.5 in140 cm
- Height
- 57.13 in145 cm
- Wheelbase
- 66.75 in169 cm
- Front tread
- 45.88 in116 cm
- Rear tread
- 41.75 in106 cm
Dimensions And Tires
- Wheelbase
- 66.75 inches169 cm
- Weight
- 4120 lbs1868 kg
- Front Tire
- 5.50-16
- Rear Tire
- 12-26
Tires And Tracks
- Front Ag
- 5.50-16
- Rear Ag
- 12-26