McCormick-Deering W-12

Production: 1934 - 1938  

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

Variants
row-crop
standard
orchard
I-12:	industrial

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

Mechanical
Chassis:	4x2 2WD
Steering:	manual
Cab:	Open operator station.
Transmission:	3-speed unsynchronized gear

Power Take-off (PTO)
Rear RPM:	567

W-12 Serial Numbers
1934:	503
1935:	1356
1936:	2031
1937:	2769
1938:	3799
Final:	4133
1934:	512 (I-12)
1935:	775 (I-12)
1936:	975 (I-12)
1937:	1525 (I-12)
1938:	2495 (I-12)
Final:	2703 (I-12)

Engine Detail
International Harvester
distillate
4-cylinder
liquid-cooled vertical I-head
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
Type:	unsynchronized gear
Gears:	3 forward and 1 reverse
Clutch:	dry disc

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