McCormick-Deering W-12

The McCormick-Deering W-12 is a tractor produced by Mccormick Deering. It is equipped with a 113.1 ci 1.9 L engine. Transmission: 3 forward and 1 reverse. Operating weight: 2900 lbs 1315 kg.

Overview

	1934 - 1938 Standard-tread tractor

Production
Manufacturer	McCormick-Deering (a part of International Harvester)
Standard-tread tractor
Built in Chicago, Illinois, USA
Total built	3,633

Variants
F-12	row-crop
W-12	standard
O-12	orchard
I-12	industrial

McCormick-Deering W-12 Engine
International Harvester 1.9L 4-cyl distillate
Fuel tank	11 gal 41.6 L
Aux. fuel	0.75 gal 2.8 L
Engine details ...

McCormick-Deering W-12 Transmission
3-speed unsynchronized gear
Transmission details ...

McCormick-Deering W-12 Power
Drawbar (claimed)	10 hp 7.5 kW
Belt (claimed)	15 hp 11.2 kW
Plows	1
Drawbar (tested)	13.52 hp 10.1 kW
Belt (tested)	17.65 hp 13.2 kW
Performance test details ...

Mechanical
Two-wheel drive
Manual steering
Open operator station.

Power Take-off (PTO)
Rear PTO Type	567

Dimensions & Tires
Wheelbase	60 inches 152 cm
Weight	2900 lbs 1315 kg
Front tire	22.50x3.50
Rear tire	42x8
Full dimensions and tires ...

Belt Pulley
Diameter	13.25 inches 33 cm
Width	6.25 inches 15 cm
RPM	787
Speed	2730 ft/min 832.10 meters/min

References
International Tractors - The Line That Offers You A Choice published in 1933, by International Harvester
McCormick-Deering Tractors - Modern Agricultural Power published in 1933, by International Harvester

Engine

Engine Detail — 113.1 ci / 1.9 L

Manufacturer	International Harvester
Configuration	4-cylinder, liquid-cooled vertical I-head
distillate
Displacement	113.1 ci 1.9 L
Bore/Stroke	3.00x4.00 inches 76 x 102 mm
Air cleaner	oil bath
Rated RPM	1700
Firing order	1-3-4-2
Coolant capacity	14 qts 13.2 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 W-12 Tires
Ag front	22.50x3.50 steel
Ag rear	42x8 steel

Dimensions
Wheelbase	60 inches 152 cm
Length	103 inches 261 cm
Width	50.5 inches 128 cm
Height (steering wheel)	55 inches 139 cm
Shipping weight	2900 lbs 1315 kg
Front tread	40.75 inches 103 cm
Rear tread	42.25 inches 107 cm

Tests

Tractor Tests
NTTL 229: kerosene 3-speed 2WD
NTTL 231: gasoline 3-speed 2WD

Nebraska Tractor Test 229
Kerosene 3-speed 2WD October 23 - November 9, 1934 Link: Nebraska Tractor Test 229 file
Belt power (max)	15.28 hp 11.4 kW
Belt fuel use (max)	1.5 gal/hour 5.7 l/hour
Drawbar performance
Max power	12.56 hp 9.4 kW
Gear 1 used for power test.
Max pull	1,996 lbs 905 kg
Gear 1 used for pull test.

Nebraska Tractor Test 231
Gasoline 3-speed 2WD November 13 - 16, 1934 Link: Nebraska Tractor Test 231 file
Belt power (max)	17.65 hp 13.2 kW
Belt fuel use (max)	1.8 gal/hour 6.8 l/hour
Drawbar performance
Max power	13.52 hp 10.1 kW
Gear 1 used for power test.
Max pull	2,140 lbs 970 kg
Gear 1 used for pull test.

Photos

McCormick-Deering W-12.

McCormick-Deering W-12.

McCormick-Deering W-12 operator station and controls.

European International W-12.