McCormick-Deering 10-20

The McCormick-Deering 10-20 is a tractor produced by Mccormick Deering. It is equipped with a 283.7 ci 4.6 L engine. The rated power output is 24.8 hp 18.5 kW. Transmission: 3 forward and 1 reverse. Operating weight: 3700 lbs 1678 kg.

Overview

	1923 - 1939 Standard-tread tractor
1923 - 1939
Standard-tread tractor

Production
Manufacturer	McCormick-Deering (a part of International Harvester)
Standard-tread tractor
Built in Milwaukee, Wisconsin, USA

McCormick-Deering 10-20 Engine
International Harvester 4.6L 4-cyl kerosene
Fuel tank	14.5 gal 54.9 L
Aux. fuel	0.75 gal 2.8 L
Engine details ...

McCormick-Deering 10-20 Transmission
3-speed unsynchronized gear
Transmission details ...

McCormick-Deering 10-20 Power
Drawbar (claimed)	10 hp 7.5 kW
Belt (claimed)	20 hp 14.9 kW
Drawbar (tested)	19.60 hp 14.6 kW
Belt (tested)	24.8 hp 18.5 kW
Performance test details ...

Mechanical
Two-wheel drive
Manual steering
Open operator station.

Dimensions & Tires
Weight	3700 lbs 1678 kg
Front tire	30x4.50
Rear tire	42x12
Full dimensions and tires ...

Belt Pulley
Diameter	15.25 inches 38 cm
Width	7 inches 17 cm
RPM	661

References
International Tractors - The Line That Offers You A Choice published in 1933, by International Harvester
Will A Tractor Pay On Your Farm? published in 1930, by International Harvester
McCormick-Deering Tractors - Modern Agricultural Power published in 1933, by International Harvester

Engine

Engine Detail — 283.7 ci / 4.6 L Kerosene

Manufacturer	International Harvester
Fuel Type	Kerosene
Configuration	4-cylinder, liquid-cooled vertical, valve-in-head
Displacement	283.7 ci 4.6 L
Bore/Stroke	4.25x5.00 inches 108 x 127 mm
Rated RPM	1000
Coolant capacity	36 qts 34.1 L

Transmission

Transmission — 3 forward and 1 reverse unsynchronized gear

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

Dimensions

McCormick-Deering 10-20 Tires
Ag front	30x4.50 stel
Ag rear	42x12 steel

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

Tests

Tractor Tests
NTTL 95: kerosene 3-speed 2WD
NTTL 142: kerosene 3-speed 2WD

Nebraska Tractor Test 95
Kerosene 3-speed 2WD September 25 - October 3, 1923 Link: Nebraska Tractor Test 95 file
Belt power (max)	21.84 hp 16.3 kW
Belt fuel use (max)	2.3 gal/hour 8.7 l/hour
Drawbar performance
Max power	15.54 hp 11.6 kW
Max pull	2,640 lbs 1197 kg

Nebraska Tractor Test 142
Kerosene 3-speed 2WD October 3 - 8, 1927 Link: Nebraska Tractor Test 142 file
Belt power (max)	24.8 hp 18.5 kW
Belt fuel use (max)	2.7 gal/hour 10.2 l/hour
Drawbar performance
Max power	19.60 hp 14.6 kW
Max pull	2,955 lbs 1340 kg

Photos

McCormick-Deering 10-20 on steel wheels, front right.

McCormick-Deering 10-20 on rubber tires, rear view.

McCormick-Deering 10-20 operator station and controls.