Introduction
Allis-Chalmers D12: A Versatile Row-Crop Tractor (1959-1968)
The Allis-Chalmers D12 is a row-crop tractor produced between 1959 and 1968 at the company's manufacturing facility in West Allis, Wisconsin. Designed for versatility in agricultural operations, this model represents a standard configuration for mid-century American farm machinery.
Engine and Performance
The D12 is powered by an Allis-Chalmers 4-cylinder gasoline engine with a displacement of 149 cubic inches (2.4 L). It features a 7.5:1 compression ratio and is rated at 1650 RPM, delivering 31 horsepower. The engine utilizes a liquid-cooling system and an oil bath air cleaner to maintain operational efficiency and durability under field conditions.
Transmission and Hydraulics
The tractor is equipped with a sliding gear transmission providing 4 forward speeds and 1 reverse gear. It features a live hydraulic system, which allows the operator to control implements independently of the tractor's forward motion, configured with 1 or 2 valves. A rear PTO operating at 540 RPM is standard for powering external agricultural equipment.
Dimensions and Hitching
Built on a 78.75-inch wheelbase, the D12 has a shipping weight of 2,800 lbs and a ballasted weight of 5,630 lbs. It utilizes a Category I rear hitch and the proprietary Allis-Chalmers Snap-Couple system for secure implement attachment. The tractor features an open operator station and adjustable rear tread widths ranging from 52 to 79.25 inches to accommodate various row-crop requirements.
Conclusion
With its 31-horsepower engine and adaptable hitching system, the Allis-Chalmers D12 serves as a reliable platform for general farming tasks. Its compact dimensions and adjustable tread widths make it particularly suited for row-crop applications requiring maneuverability and stable performance.
Production Information of Allis Chalmers, D12
- Row-Crop tractor
- Built in West Allis, Wisconsin, USA
| Manufacturer | Allis Chalmers |
|---|---|
| Original price | $3,522 (1968) |
Dimension and Tires Information of Allis Chalmers, D12
| Clearance (front axle) | 20.25 inches [51 cm] |
|---|---|
| Wheelbase | 78.75 inches [200 cm] |
| Shipping weight | 2,800 lbs [1270 kg] |
| Height (exhaust) | 76.5 inches [194 cm] |
| Length | 121 inches [307 cm] |
| Clearance (rear axle) | 22.25 inches [56 cm] |
| Ballasted weight | 5,630 lbs [2553 kg] |
| Height (hood) | 52.5 inches [133 cm] |
| Rear tread | 52 to 79.25 inches [132 to 201 cm] |
| Front tread | 49.3 to 80 inches [125 to 203 cm] |
| Ag front | 5.00x15 |
|---|---|
| Ag rear | 10x24 |
| Ag rear | 11x24 |
Engine Specifications of Allis Chalmers, D12
- Allis-Chalmers
- Liquid-cooled
- 4-cylinder
- Gasoline
- The larger, 149 cubic inch, engine was introduced on the D12 at serial number 3001 in 1961.
| Air cleaner | Oil bath |
|---|---|
| Firing order | 1-2-4-3 |
| Displacement | 149 ci [2.4 L] |
| Bore/Stroke | 3.50x3.875 inches [89 x 98 mm] |
| Rated RPM | 1650 |
| Compression | 7.5:1 |
| Coolant capacity | 8 qts [7.6 L] |
| Oil capacity | 4 qts [3.8 L] |
| Starter volts | 6 |
Transmission Information of Allis Chalmers, D12
Transmission variants 1
| Type | Sliding gear |
|---|---|
| Gears | 4 forward and 1 reverse |
Mechanical Specs of Allis Chalmers, D12
- Two-wheel drive
- Open operator station.
Power Information of Allis Chalmers, D12
| Rear PTO Type | 540 |
|---|
Hydraulics Specifications of Allis Chalmers, D12
| Type | Live |
|---|---|
| Valves | 1 or 2 |
Three-Point Hitch of Allis Chalmers, D12
| Rear Type | I |
|---|---|
| Type | Snap-Couple |
Where it sits
Its power puts it in the 38th percentile of 1950s models in our database (592 machines).
Frequently asked questions
How much horsepower does the Allis Chalmers D12 have?
The Allis Chalmers D12 delivers 31 HP.
What years was the Allis Chalmers D12 produced?
The Allis Chalmers D12 was produced in 1959-1968.
What engine does the Allis Chalmers D12 have?
The Allis Chalmers D12 is powered by a Gasoline, 4-cylinder engine.
What transmission does the Allis Chalmers D12 use?
The Allis Chalmers D12 uses a Sliding gear transmission.
How much does the Allis Chalmers D12 weigh?
The Allis Chalmers D12 weighs 2,800 lbs [1270 kg].
Is the Allis Chalmers D12 4WD?
The Allis Chalmers D12 is available in 2WD.