| Manufacturer |
McCormick-Deering |
| Price |
3,633(USD) |
| Model |
W-12 |
| Equipment Type |
Standard-Tread Tractors |
| Factory |
Chicago, Illinois, USA |
VARIANTS
NEBRASKA TRACTOR TEST 229 2
| Description |
Kerosene 3-speed 2WD October 23 - November 9, 1934 Link: Nebraska Tractor Test 229 file Drawbar performance Gear 1 used for power test Gear 1 used for pull test |
| Belt power (max) |
15.28hp / 11.4kW |
| Belt fuel use (max) |
1.5gal/hour / 5.7l/hour |
| Max power |
12.56hp / 9.4kW |
| Max pull |
1,996lbs / 905kg |
NEBRASKA TRACTOR TEST 231 2
| Description |
Gasoline 3-speed 2WD November 13 - 16, 1934 Link: Nebraska Tractor Test 231 file Drawbar performance Gear 1 used for power test Gear 1 used for pull test |
| Belt power (max) |
17.65hp / 13.2kW |
| Belt fuel use (max) |
1.8gal/hour / 6.8l/hour |
| Max power |
13.52hp / 10.1kW |
| Max pull |
2,140lbs / 970kg |
MCCORMICK-DEERING W-12 POWER
| Drawbar (claimed) |
10hp / 7.5kW |
| Belt (claimed) |
15hp / 11.2kW |
| Plows |
1 |
| Drawbar (tested) |
13.52hp / 10.1kW |
| Belt (tested) |
17.65hp / 13.2kW |
ENGINE DETAIL
The McCormick-Deering W-12 features a 1.9L four-cylinder I-head engine, providing sufficient low-end torque for field applications, with a rated RPM of 1700 optimizing fuel efficiency for prolonged usage. The oil bath air cleaner enhances engine longevity by minimizing dust intake, while the 14-quart coolant capacity supports effective thermal regulation during heavy operations. However, its relatively limited displacement may pose challenges in power-intensive tasks compared to larger tractors, making it more suitable for small to medium-sized farming operations.
| Description |
International Harvester distillate 4-cylinder liquid-cooled vertical I-head |
| Displacement |
113.1ci / 1.9L |
| Bore/Stroke |
3.00x4.00inches / 76x 102mm |
| Air cleaner |
oil bath |
| Rated RPM |
1700 |
| Firing order |
1-3-4-2 |
| Coolant capacity |
14qts / 13.2L |
MCCORMICK-DEERING W-12 ENGINE
The McCormick-Deering W-12 is powered by a 1.9L 4-cylinder distillate engine, providing efficient fuel consumption suited for agricultural tasks. Its 11-gallon fuel tank allows for extended operation between refuels, while the 0.75-gallon auxiliary tank offers added versatility for lighter tasks or supplemental fuel needs. However, the relatively small engine displacement may limit power output for heavier applications, making this tractor ideal for moderate-duty operations rather than extensive heavy-duty farming.
| Description |
International Harvester 1.9L 4-cyl distillate |
| Fuel tank |
11gal / 41.6L |
| Aux. fuel |
0.75gal / 2.8L |
TRANSMISSION
The McCormick-Deering W-12 features an unsynchronized gearbox with 3 forward and 1 reverse gear, which may lead to challenges in shifting under load due to the lack of synchronization. The dry disc clutch provides reliable engagement but can be prone to wear and slippage if not properly maintained. Ideal for light agricultural tasks, the W-12's simplicity enhances ease of operation, although it may limit performance in demanding conditions compared to more advanced transmission systems.
| Type |
unsynchronized gear |
| Gears |
3 forward and 1 reverse |
| Clutch |
dry disc |
MECHANICAL
The McCormick-Deering W-12 features a 4x2 2WD chassis, suitable for flat terrain but may struggle with traction on inclines or wet conditions. Its manual steering offers simplicity and direct communication, though it may require more physical effort during sharp turns. The 3-speed unsynchronized transmission permits straightforward operation but necessitates careful shifting to avoid grinding gears, impacting maneuverability and operator efficiency in changing conditions.
| Chassis |
4x2 2WD |
| Steering |
manual |
| Cab |
Open operator station |
| Transmission |
3-speed unsynchronized gear |
POWER TAKE-OFF (PTO)
MCCORMICK-DEERING W-12 TIRES
The McCormick-Deering W-12, equipped with 22.50x3.50 steel front wheels and 42x8 steel rear wheels, features a robust design suited for agricultural applications, enhancing traction and stability on various terrains. The use of steel wheels provides durability and longevity but may lead to reduced operator comfort due to harsher ride quality on uneven surfaces. Overall, this tractor is ideal for heavy-duty tasks in fieldwork scenarios but may struggle on softer, muddy terrains where rubber tires could be more advantageous.
| Ag front |
22.50x3.50 steel |
| Ag rear |
42x8 steel |
DIMENSIONS
| Wheelbase |
60inches / 152cm |
| Length |
103inches / 261cm |
| Width |
50.5inches / 128cm |
| Height (steering wheel) |
55inches / 139cm |
| Shiping weight |
2900lbs / 1315kg |
| Front tread |
40.75inches / 103cm |
| Rear tread |
42.25inches / 107cm |
DIMENSIONS & TIRES
The McCormick-Deering W-12, with a compact 60-inch wheelbase, offers enhanced maneuverability in tight farm operations but may face stability challenges on uneven terrain due to its reduced footprint. Weighing 2,900 lbs, it strikes a balance between portability and traction, making it suitable for lighter agricultural tasks but potentially underpowered for heavy plowing scenarios. The tire specifications—with a narrower front tire and wider rear tire—promote better weight distribution and grip, though one may need to consider soil compaction effects in soft ground conditions.
| Wheelbase |
60inches / 152cm |
| Weight |
2900lbs / 1315kg |
| Front tire |
22.50x3.50 |
| Rear tire |
42x8 |
W-12 SERIAL NUMBERS
| 1934 |
512 (I-12) |
| 1935 |
775 (I-12) |
| 1936 |
975 (I-12) |
| 1937 |
1525 (I-12) |
| 1938 |
2495 (I-12) |
| Final |
2703 (I-12) |
BELT PULLEY
| Diameter |
13.25inches / 33cm |
| Width |
6.25inches / 15cm |
| RPM |
787 |
| Speed |
2730ft/min / 832.10meters/min |
