Introduction
International Harvester McCormick-Deering WD-6
The International Harvester WD-6 is a standard-tread agricultural tractor produced between 1940 and 1952. Manufactured in Rock Island, Illinois, USA, this model belongs to a series often associated with the Super WD-6 developments of the early 1950s, serving as a reliable machine for mid-century farming operations.
Engine and Performance
The tractor is powered by an International Harvester 4-cylinder, liquid-cooled vertical I-head diesel engine. With a displacement of 4.1 liters (247.7 cubic inches) and a compression ratio of 14.2:1, the engine delivers 40 horsepower at a rated speed of 1450 RPM. The firing order is set to 1-3-4-2.
Transmission and Drivetrain
Power is transferred through a mechanical gear transmission featuring 5 forward speeds and 1 reverse speed. The drivetrain includes a 279.4 mm mechanical dry disc clutch, which provides the necessary engagement for various field applications. The tractor utilizes a two-wheel drive configuration.
Hydraulics and PTO
The WD-6 is equipped with a rear power take-off (PTO) operating at a standard speed of 540 RPM. This feature allows the tractor to power a range of implements consistent with the agricultural standards of its production era.
Dimensions and Chassis
The tractor features a wheelbase of 193 cm (76 inches) and an overall length of 315 cm (124.4 inches). It has a shipping weight of 1,973 kg (4,350 lbs). The operator station is of an open design, and the machine is steered via a manual steering system. The front tread is adjustable to 118 cm (46.75 inches), while the rear tread measures 134 cm (53 inches).
Conclusion
The International Harvester WD-6 is a robust, mechanically straightforward tractor designed for general agricultural tasks. Its combination of a 40-horsepower diesel engine, standard 540 RPM PTO, and durable construction makes it a representative example of mid-20th-century American tractor design, suitable for collectors and historical agricultural use.
Production Information of McCormick-Deering, WD-6
- Standard-tread tractor
- Built in Rock Island, Illinois, USA
| Manufacturer | McCormick-Deering (a part of International Harvester) |
|---|
Dimension and Tires Information of McCormick-Deering, WD-6
| Front tread | 46.75 inches [118 cm] |
|---|---|
| Wheelbase | 76 inches [193 cm] |
| Height (hood) | 59 inches [149 cm] |
| Height | 90 inches [228 cm] |
| Length | 124.4 inches [315 cm] |
| Rear tread | 53 inches [134 cm] |
| Shipping weight | 4350 lbs [1973 kg] |
| Width | 63 inches [160 cm] |
| Ag front | 22.50-4 (steel) |
|---|---|
| Ag rear | 13.5x24 |
| Ag rear | 42-10 (steel) |
| Ag front | 6.50x16 |
Engine Specifications of McCormick-Deering, WD-6
- International Harvester
- Liquid-cooled vertical I-head
- Diesel
- 4-cylinder
| Compression | 14.2:1 |
|---|---|
| Displacement | 247.7 ci [4.1 L] |
| Rated RPM | 1450 |
| Bore/Stroke | 3.875x5.25 inches [98 x 133 mm] |
| Coolant capacity | 27 qts [25.6 L] |
| Firing order | 1-3-4-2 |
Transmission Information of McCormick-Deering, WD-6
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 5 forward and 1 reverse |
| Clutch | 279.4mm mechanical dry disc |
Mechanical Specs of McCormick-Deering, WD-6
- Two-wheel drive
- Manual steering
- Open operator station.
Power Information of McCormick-Deering, WD-6
| Rear PTO | Transmission |
|---|---|
| Rear PTO Type | 540 |
Where it sits
With 40 hp[B] HP, the McCormick-Deering WD-6 sits just below Super WD-6 (45 HP) in McCormick-Deering's range. Its power puts it in the 65th percentile of 1940s models in our database (263 machines).
Frequently asked questions
How much horsepower does the McCormick-Deering WD-6 have?
The McCormick-Deering WD-6 delivers 40 hp[B] HP.
What years was the McCormick-Deering WD-6 produced?
The McCormick-Deering WD-6 was produced in 1940-1952.
What engine does the McCormick-Deering WD-6 have?
The McCormick-Deering WD-6 is powered by a Diesel, 4-cylinder engine.
What transmission does the McCormick-Deering WD-6 use?
The McCormick-Deering WD-6 uses a Gear transmission.
How much does the McCormick-Deering WD-6 weigh?
The McCormick-Deering WD-6 weighs 4350 lbs [1973 kg].
Is the McCormick-Deering WD-6 4WD?
The McCormick-Deering WD-6 is available in 2WD.