Introduction
McCormick-Deering O-4 Orchard and Vineyard Tractor
The McCormick-Deering O-4 is a specialized tractor designed for orchard and vineyard operations, manufactured between 1940 and 1953 in Rock Island, Illinois, USA. A total of 2,721 units were produced, establishing it as a dedicated utility machine for specialized agricultural environments.
Engine and Performance
The tractor is powered by an International Harvester 4-cylinder gasoline engine with a displacement of 152.1 cubic inches (2.5 liters). The liquid-cooled power plant features a bore and stroke of 3.375 by 4.45 inches and operates at a rated RPM of 1650. It delivers approximately 30 horsepower, suitable for the specific traction requirements of orchard work.
Transmission and Drivetrain
The O-4 utilizes a manual gear-type transmission providing 5 forward speeds and 1 reverse gear. Power is delivered to the rear wheels via a two-wheel-drive configuration. The tractor is equipped with a rear power take-off (PTO) operating at a standard 540 RPM, allowing for the operation of various mounted implements.
Dimensions and Handling
Designed for maneuverability in confined spaces, the tractor features a wheelbase of 66.75 inches and an overall width of 60.25 inches. With a shipping weight of 4,320 lbs (1,959 kg), it offers a stable platform for field operations. The operator station is of the open type, utilizing manual steering for direct control, and it is fitted with 5.50-16 front and 12-26 rear agricultural tires.
Conclusion
The McCormick-Deering O-4 remains a significant example of mid-20th-century specialized agricultural engineering. Its compact dimensions, specific power output, and standard PTO integration make it a functional choice for orchard and vineyard maintenance tasks where accessibility and reliability are prioritized.
Production Information of McCormick-Deering, O-4
- Orchard/Vineyard tractor
- Built in Rock Island, Illinois, USA
| Manufacturer | McCormick-Deering |
|---|---|
| Total built | 2,721 |
Dimension and Tires Information of McCormick-Deering, O-4
| Wheelbase | 66.75 inches [169 cm] |
|---|---|
| Shipping weight | 4320 lbs [1959 kg] |
| Height | 60.25 inches [153 cm] |
| Length | 120.9 inches [307 cm] |
| Width | 60.25 inches [153 cm] |
| Ag front | 5.50-16 |
|---|---|
| Ag rear | 12-26 |
Engine Specifications of McCormick-Deering, O-4
- International Harvester
- Liquid-cooled
- Gasoline
- 4-cylinder
| Firing order | 1-3-4-2 |
|---|---|
| Displacement | 152.1 ci [2.5 L] |
| Displacement(optional) | 4.75:1 (gasoline-distillate) |
| Bore/Stroke | 3.375x4.45 inches [86 x 113 mm] |
| Oil capacity | 6 qts [5.7 L] |
| Rated RPM | 1650 |
| Rated RPM(optional) | 4.5:1 (kerosene) |
| Compression | 5.9:1 (high-compression gasoline) |
Transmission Information of McCormick-Deering, O-4
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 5 forward and 1 reverse |
Mechanical Specs of McCormick-Deering, O-4
- Two-wheel drive
- Manual steering
- Open operator station
Power Information of McCormick-Deering, O-4
| Rear PTO Type | 540 |
|---|
Where it sits
With 30 hp[B] HP, the McCormick-Deering O-4 sits between W-4 (27 HP) and 15-30 (33 HP) in McCormick-Deering's range. Its power puts it in the 43th percentile of 1940s models in our database (263 machines).
Frequently asked questions
How much horsepower does the McCormick-Deering O-4 have?
The McCormick-Deering O-4 delivers 30 hp[B] HP.
What years was the McCormick-Deering O-4 produced?
The McCormick-Deering O-4 was produced in 1940-1953.
What engine does the McCormick-Deering O-4 have?
The McCormick-Deering O-4 is powered by a Gasoline, 4-cylinder engine.
What transmission does the McCormick-Deering O-4 use?
The McCormick-Deering O-4 uses a Gear transmission.
How much does the McCormick-Deering O-4 weigh?
The McCormick-Deering O-4 weighs 4320 lbs [1959 kg].
Is the McCormick-Deering O-4 4WD?
The McCormick-Deering O-4 is available in 2WD.