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McCormick-Deering 10-20

McCormick-Deering 10-20 tractor
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The McCormick-Deering 10-20 is a standard-tread farm tractor produced from 1923 to 1939 by McCormick-Deering, a part of International Harvester. Built in Milwaukee, Wisconsin, USA, it features a 4-cylinder, liquid-cooled, valve-in-head kerosene engine with a displacement of 4.6 liters. The tractor has a 3-speed unsynchronized gear transmission with a dry disc clutch. It delivers 10 hp drawbar power claimed and 19.6 hp tested, with belt power up to 24.8 hp tested. The tractor is two-wheel drive with manual steering and an open operator station. Dimensions include a length of 123 inches, width of 60 inches, height of 62 inches, and weight of 3700 lbs. Tires are steel with sizes 30x4.50 front and 42x12 rear. The fuel tank capacity is 14.5 gallons with an auxiliary fuel tank of 0.75 gallons. The belt pulley diameter is 15.25 inches with a width of 7 inches and runs at 661 RPM. Serial numbers are located below the fuel tank.
McCormick-Deering 10-20tractorfarm tractorspecificationsenginetransmissionpowerdimensionstiresInternational Harvester
Power22 hp[B]
Founded1923 - 1939
Model10-20

Technical Specifications

Detailed specifications and technical data for McCormick-Deering 10-20

Power

Belt (tested):24.8 hp (18.5 kW)
Belt (claimed):20 hp (14.9 kW)
Drawbar (tested):19.60 hp (14.6 kW)
Drawbar (claimed):10 hp (7.5 kW)

Tires

Rear tire:42x12 steel
Front tire:30x4.50 steel

Engine

Make:International Harvester
Cooling:liquid-cooled vertical, valve-in-head
Aux. fuel:0.75 gal (2.8 L)
Cylinders:4-cylinder
Fuel tank:14.5 gal (54.9 L)
Fuel type:kerosene
Rated RPM:1000
Bore/Stroke:4.25x5.00 inches (108 x 127 mm)
Displacement:283.7 ci (4.6 L)
Coolant capacity:36 qts (34.1 L)

Dimensions

Width:60 inches (152 cm)
Height:62 inches (157 cm)
Length:123 inches (312 cm)
Weight:3700 lbs (1678 kg)

Mechanical

Drive:Two-wheel drive
Steering:Manual steering
Operator station:Open operator station

Production

Type:Standard-tread tractor
Built in:Milwaukee, Wisconsin, USA
Manufacturer:McCormick-Deering (a part of International Harvester)
Years produced:1923 - 1939

Belt Pulley

RPM:661
Width:7 inches (17 cm)
Diameter:15.25 inches (38 cm)

Transmission

Type:unsynchronized gear
Gears:3 forward and 1 reverse
Clutch:dry disc

Serial Numbers

1923:KC501
1924:KC7641
1925:KC18869
1926:KC37728
1927:KC62824
1928:KC89470
1929:KC119823
1930:KC159111
1931:KC191486
1932:KC201013
1933:-----
1934:KC204239
1935:KC206179
1936:KC207275
1937:KC210235
1938:KC212425
1939:KC214886