The Allis Chalmers D12 is a 2WD row-crop tractor from the D series. This tractor was manufactured by Allis Chalmers in West Allis, Wisconsin, USA from 1959 to 1968.
The Allis Chalmers D12 is equipped with one of two engines: a 2.3 L (138.7 cu·in) four-cylinder gasoline engine or a 2.4 L (149.0 cu·in) four-cylinder gasoline engine and sliding gear transmission with 4 forward and 1 reverse gear.
The tractor could be equipped with the following engines:
- Allis-Chalmers Power-Crater. It is a 2.3 L, 2,273 cm2, (138.7 cu·in) four-cylinder natural aspirated gasoline engine with 86.0 mm (3.39 in) of the cylinder bore and 98.0 mm (3.86 in) of the piston stroke. The compression ratio rating is 7.75:1. This engine produced 31.4 PS (23.1 kW; 31.0 HP) at 1,650 rpm of output power.
- Allis-Chalmers. It is a 2.4 L, 2,442 cm2, (149.0 cu·in) four-cylinder natural aspirated gasoline engine. The cylinder bore is 89.0 mm (3.5 in) and the piston stroke is 98.0 mm (3.86 in). The compression ratio rating is 7.5:1. This engine produced 31.4 PS (23.1 kW; 31.0 HP) at 1,650 rpm of output power.
The Allis Chalmers D12 is equipped with manual steering, open operator station, and 47.3 liters (12.5 US gal.; 10.4 Imp. gal) fuel tank.
Allis Chalmers D12 Specifications
| General Specifications | |
| Model | Allis Chalmers D12 |
| Length | 3,070 mm (120.9 in) |
| Width | – |
| Height | 1,940 mm (76.4 in) |
| Wheel base | 2,000 mm (78.7 in) |
| Weight | 1,270 kg (2,800 lbs) |
| Fuel tank capacity | 47.3 liters (12.5 US gal.; 10.4 Imp. gal) |
| Battery | 6V |
| Cabin type | Open operator station |
| Engine | |
| Engine model | Allis-Chalmers Power-Crater |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 4 |
| Fuel type | Gasoline |
| Displacement | 2.3 L, 2,273 cm2, (138.7 cu·in) |
| Bore and stroke | 86.0 mm X 98.0 mm (3.39 in X 3.86 in) |
| Compression ratio | 7.75:1 |
| Horsepower | 31.4 PS (23.1 kW; 31 HP) at 1,650 rpm |
| Starter | Electric |
| Oil capacity: | 3.8 L (4 US. qt, 3.3 Imp. qt.) |
| Coolant capacity: | 7.6 L (8 US. qt, 6.7 Imp. qt.) |
| Engine | |
| Engine model | Allis-Chalmers |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 4 |
| Fuel type | Gasoline |
| Displacement | 2.4 L, 2,442 cm2, (149.0 cu·in) |
| Bore and stroke | 89.0 mm X 98.0 mm (3.5 in X 3.86 in) |
| Compression ratio | 7.5:1 |
| Horsepower | 31.4 PS (23.1 kW; 31 HP) at 1,650 rpm |
| Starter | Electric |
| Transmission and chassis | |
| Chassis | 4×2 2WD |
| Steering type | Manual |
| Brakes | – |
| Transmission model | |
| Transmission type | Sliding gear |
| Gears | 4 forward and 1 reverse |
| Speed | Forward: 18.3 kmh (11.4 mph) Reverse: 5.6 (3.5 mph) |
| Tires | |
| Front tires | Ag: 5.00-15 |
| Rear tires | Ag: 10-24 |
| Three-Point Hitch | |
| Caterogy | I |
| Control type | – |
| Lift capacity (at ends) | – |
| PTO (Power take-off shaft) | |
| Rear PTO type | – |
| Rear PTO speed | 540 rpm |
| Hydraulic system | |
| Hydraulic type | Live |
| Valves | 1 or 2 |