Introduction
McCormick-Deering AW-7 Standard-Tread Tractor
The McCormick-Deering AW-7 was a standard-tread tractor manufactured in Geelong, Australia, between 1957 and 1960. As a specialized evolution of the earlier AW-6 series, this model served as the Australian counterpart to international designs such as the American International W-400 and the British McCormick International B-450.
Engine and Performance
The tractor is powered by the International Harvester AC-264, a 4-cylinder, liquid-cooled engine with a displacement of 264 cubic inches (4.3 liters). It features a bore and stroke of 4.00 by 5.25 inches and operates at a rated speed of 1450 RPM, delivering 54 horsepower. The engine was configured for either kerosene or diesel fuel, depending on the specific model variant.
Transmission and Hydraulics
The drivetrain consists of a gear-type transmission providing 5 forward speeds and 1 reverse gear. The rear power take-off (PTO) operates at 540 RPM. The hydraulic system provides a flow rate of 10 gallons per minute (37.9 liters per minute) at a pressure of 1200 psi (82.7 bar), suitable for operating standard agricultural implements through the Category II rear hitch.
Mechanical and Dimensions
Built on a two-wheel drive chassis, the AW-7 features power-assisted steering with an enclosed worm and gear mechanism. The tractor has a wheelbase of 76.5 inches (194 cm) and a total length of 125 inches (317 cm). In terms of mass, the kerosene version weighs 7735 lbs (3508 kg), while the diesel variant is heavier at 8540 lbs (3873 kg). It is equipped with 7.50x16 front tires and 14.00x30 rear tires.
Conclusion
The McCormick-Deering AW-7 is a robust, standard-tread tractor designed for diverse field operations. Its combination of a powerful 4-cylinder engine, power-assisted steering, and a reliable gear-driven transmission makes it a representative example of mid-20th-century Australian agricultural engineering.
Production Information of McCormick-Deering, AW-7
- The AW-7 models were a unique Australian evolution of the earlier AW-6 models. The AW-7 was the standard tread version of the Farmall AM-7 and a cousin to the US-built International W-400 and British-built McCormick International B-450. There were two models, the AW-7 diesel and AW-7 kerosene. The AW-7 diesel was sometimes called the "AWD-7", although this was not the official name.
- Standard-tread tractor
- Built in Geelong, Australia
| Manufacturer | McCormick-Deering (a part of International Harvester) |
|---|
Dimension and Tires Information of McCormick-Deering, AW-7
| Wheelbase | 76.5 inches [194 cm] |
|---|---|
| Diesel Weight | 8540 lbs [3873 kg] |
| Kerosene Weight | 7735 lbs [3508 kg] |
| Length | 125 inches [317 cm] |
| Width | 78.75 inches [200 cm] |
| Ag front | 7.50x16 |
|---|---|
| Ag rear | 14.00x30 |
Engine Specifications of McCormick-Deering, AW-7
- International Harvester AC-264
- Liquid-cooled
- Kerosene
- 4-cylinder
| Starter | Electric |
|---|---|
| Displacement | 264 ci [4.3 L] |
| Starter volts | 6 |
| Bore/Stroke | 4.00x5.25 inches [102 x 133 mm] |
| Starter volts | 12 |
| Rated RPM | 1450 |
Transmission Information of McCormick-Deering, AW-7
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 5 forward and 1 reverse |
Mechanical Specs of McCormick-Deering, AW-7
- Two-wheel drive
- Open operator station.
| Steering | Power assisted, enclosed worm and gear |
|---|
Power Information of McCormick-Deering, AW-7
| Rear PTO Type | 540 (1375) |
|---|
Hydraulics Specifications of McCormick-Deering, AW-7
| Pressure | 1200 psi [82.7 bar] |
|---|---|
| Pump flow | 10 gpm [37.9 lpm] |
Three-Point Hitch of McCormick-Deering, AW-7
| Rear Type | II |
|---|
Where it sits
With 54 hp[B] HP, the McCormick-Deering AW-7 sits between TD-40 (53 HP) and B-450 (55 HP) in McCormick-Deering's range. Its power puts it in the 79th percentile of 1950s models in our database (592 machines).
Frequently asked questions
How much horsepower does the McCormick-Deering AW-7 have?
The McCormick-Deering AW-7 delivers 54 hp[B] HP.
What years was the McCormick-Deering AW-7 produced?
The McCormick-Deering AW-7 was produced in 1957-1960.
What engine does the McCormick-Deering AW-7 have?
The McCormick-Deering AW-7 is powered by a 4-cylinder engine.
What transmission does the McCormick-Deering AW-7 use?
The McCormick-Deering AW-7 uses a Gear transmission.
How much does the McCormick-Deering AW-7 weigh?
The McCormick-Deering AW-7 weighs 8540 lbs [3873 kg].
Is the McCormick-Deering AW-7 4WD?
The McCormick-Deering AW-7 is available in 2WD.