McCormick-Deering W-12
The McCormick-Deering W-12 is a standard-tread tractor produced from 1934 to 1938 by McCormick-Deering, a part of International Harvester. Built in Chicago, Illinois, USA, a total of 3,633 units were made. It features a 1.9L 4-cylinder liquid-cooled vertical I-head distillate engine with 16.7 estimated horsepower. The tractor has a 3-speed unsynchronized gear transmission with dry disc clutch, two-wheel drive, and manual steering. It has an open operator station and a rear PTO type 567. The W-12 is capable of pulling one plow and has drawbar and belt power ratings both claimed and tested. Dimensions include a 60-inch wheelbase, 103-inch length, and a shipping weight of 2900 lbs. Tires are steel with sizes 22.50x3.50 front and 42x8 rear. Variants include the F-12 row-crop, O-12 orchard, and I-12 industrial models.
Power16 hp[B]
Founded1934 - 1938
ModelW-12
Technical Specifications
Detailed specifications and technical data for McCormick-Deering W-12
Power
| Plows | 1 |
|---|---|
| Belt (tested) | 17.65 hp (13.2 kW) |
| Belt (claimed) | 15 hp (11.2 kW) |
| Drawbar (tested) | 13.52 hp (10.1 kW) |
| Drawbar (claimed) | 10 hp (7.5 kW) |
Tires
| Ag rear | 42x8 steel |
|---|---|
| Ag front | 22.50x3.50 steel |
Engine
| Type | distillate |
|---|---|
| Cooling | liquid-cooled vertical I-head |
| Aux. fuel | 0.75 gal (2.8 L) |
| Cylinders | 4-cylinder |
| Fuel tank | 11 gal (41.6 L) |
| Rated RPM | 1700 |
| Air cleaner | oil bath |
| Bore/Stroke | 3.00x4.00 inches (76 x 102 mm) |
| Displacement | 113.1 ci (1.9 L) |
| Firing order | 1-3-4-2 |
| Manufacturer | International Harvester |
| Coolant capacity | 14 qts (13.2 L) |
Variants
| F-12 | row-crop |
|---|---|
| I-12 | industrial |
| O-12 | orchard |
| W-12 | standard |
Dimensions
| Width | 50.5 inches (128 cm) |
|---|---|
| Length | 103 inches (261 cm) |
| Wheelbase | 60 inches (152 cm) |
| Rear tread | 42.25 inches (107 cm) |
| Front tread | 40.75 inches (103 cm) |
| Shipping weight | 2900 lbs (1315 kg) |
| Height (steering wheel) | 55 inches (139 cm) |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Steering | Manual steering |
| Operator station | Open operator station |
Production
| Type | Standard-tread tractor |
|---|---|
| Built in | Chicago, Illinois, USA |
| Total built | 3,633 |
| Years produced | 1934 - 1938 |
Belt Pulley
| RPM | 787 |
|---|---|
| Speed | 2730 ft/min (832.10 meters/min) |
| Width | 6.25 inches (15 cm) |
| Diameter | 13.25 inches (33 cm) |
Transmission
| Type | unsynchronized gear |
|---|---|
| Gears | 3 forward and 1 reverse |
| Clutch | dry disc |
Power Take-off (PTO)
| Rear PTO Type | 567 |
|---|
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