McCormick-Deering WD-40
Power
48 hp[B] hp
Production
1935-1940
Engine
Diesel, 4-cylinder 8 ((The WD-40 engine has twelve total valves. The four intake valves on the gasoline start manifold are blocked off during diesel operation.))-valve
Transmission
Gear
Weight
7,550 lbs [3424 kg]
Drive
2WD
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Introduction
McCormick-Deering WD-40: Standard-Tread Tractor
The McCormick-Deering WD-40 is a standard-tread agricultural tractor manufactured by International Harvester in Milwaukee, Wisconsin, between 1935 and 1940. As part of the company's evolution in diesel technology, this model was designed to provide reliable field performance during the mid-1930s.
Engine and Performance
The tractor is powered by an International Harvester 4-cylinder, 8-valve diesel engine with a displacement of 460.7 cubic inches (7.6 liters). It operates at a rated speed of 1100 RPM and features a 17:1 compression ratio. The engine utilizes a liquid-cooling system with a 53-liter capacity and an oil bath air cleaner to maintain operational integrity. A notable feature is the hand-cranked gasoline-ignition starting system, which allows the engine to be started on gasoline before transitioning to diesel operation.
Transmission and Drivetrain
The WD-40 is equipped with a manual transmission offering three forward gears and one reverse gear. Power is transferred to the wheels via a dry disc clutch. The drivetrain is configured as a two-wheel drive system, utilizing spur gear final drives to manage power delivery to the rear wheels.
Mechanical and Physical Dimensions
With a total weight of 7,550 lbs (3,424 kg), the tractor is built for stability in field conditions. It measures 141.5 inches in length, 65.5 inches in width, and 67 inches in height. The operator station is of the open type, and the machine is operated via manual steering. The unit is fitted with steel wheels, featuring 34x6 dimensions at the front and 50x12 at the rear.
Conclusion
The McCormick-Deering WD-40 is representative of 1930s heavy-duty agricultural engineering. Its reliance on a diesel platform with a dedicated gasoline starting procedure makes it a significant model for collectors and historians interested in the transition toward diesel-powered farm equipment.
Production Information of McCormick-Deering, WD-40
- Standard-tread tractor
- Built in Milwaukee, Wisconsin, USA
| Manufacturer | McCormick-Deering (a part of International Harvester) |
|---|
Dimension and Tires Information of McCormick-Deering, WD-40
| Length | 141.5 inches [359 cm] |
|---|---|
| Weight | 7,550 lbs [3424 kg] |
| Width | 65.5 inches [166 cm] |
| Height | 67 inches [170 cm] |
| Ag front | 34x6 steel |
|---|---|
| Ag rear | 50x12 steel |
Engine Specifications of McCormick-Deering, WD-40
- International Harvester
- Liquid-cooled vertical I-head
- Diesel
- 4-cylinder 8 ((The WD-40 engine has twelve total valves. The four intake valves on the gasoline start manifold are blocked off during diesel operation.))-valve
| Coolant capacity | 56 qts [53.0 L] |
|---|---|
| Displacement | 460.7 ci [7.6 L] |
| Compression | 17:1 |
| Bore/Stroke | 4.75x6.50 inches [121 x 165 mm] |
| Starter type | Hand-cranked gasoline-ignition |
| Rated RPM | 1100 |
| Air cleaner | Oil bath |
Transmission Information of McCormick-Deering, WD-40
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 3 forward and 1 reverse |
| Clutch | Dry disc |
Mechanical Specs of McCormick-Deering, WD-40
- Two-wheel drive
- Open operator station
- Manual steering
| Final drives | Spur gear |
|---|
Power Information of McCormick-Deering, WD-40
- Https://www.tractordata.com/farm-tractors/003/4/5/3454-mccormick-deering-wd-40-tests.html
Where it sits
With 48 hp[B] HP, the McCormick-Deering WD-40 sits just above 22-36 (45 HP) in McCormick-Deering's range. Its power puts it in the 76th percentile of 1930s models in our database (235 machines).
Frequently asked questions
How much horsepower does the McCormick-Deering WD-40 have?
The McCormick-Deering WD-40 delivers 48 hp[B] HP.
What years was the McCormick-Deering WD-40 produced?
The McCormick-Deering WD-40 was produced in 1935-1940.
What engine does the McCormick-Deering WD-40 have?
The McCormick-Deering WD-40 is powered by a Diesel, 4-cylinder 8 ((The WD-40 engine has twelve total valves. The four intake valves on the gasoline start manifold are blocked off during diesel operation.))-valve engine.
What transmission does the McCormick-Deering WD-40 use?
The McCormick-Deering WD-40 uses a Gear transmission.
How much does the McCormick-Deering WD-40 weigh?
The McCormick-Deering WD-40 weighs 7,550 lbs [3424 kg].
Is the McCormick-Deering WD-40 4WD?
The McCormick-Deering WD-40 is available in 2WD.