The Allis Chalmers WD is a 2WD row-crop tractor from the series. This tractor was manufactured by Allis Chalmers in West Allis, Wisconsin, USA from 1948 to 1953. The Allis Chalmers WD is equipped with a 3.3 L (201.0 cu·in) four-cylinder gasoline engine and a non-synchronized gear transmission with 4 forward and 1 reverse gears.
This AC WD tractor used the Allis Chalmers gasoline engine. It is a 3.3 L, 3,293 cm2, (201.0 cu·in) four-cylinder natural aspirated gasoline engine with 102.0 mm (4.02 in) of the cylinder bore and 102.0 mm (4.02 in) of the piston stroke. The compression ratio rating is 4.5:1 for the early version and 5.75:1 for the later variant. This engine produced 26.4 PS (19.4 kW; 26.0 HP) of PTO output power.
The Allis Chalmers WD is equipped with manual worm and horizontal sector steering, manual external compression band type brakes, open operator station, and 56.8 liters (15 US gal.; 12.5 Imp. gal) fuel tank.
Allis Chalmers WD Specifications
| General Specifications | |
| Model | Allis Chalmers WD |
| Length | 3,220 mm (126.8 in) |
| Width | – |
| Height | 2,070 mm (81.5 in) |
| Wheel base | 2,230 mm (87.8 in) |
| Weight | 1,590 kg (3,505 lbs) |
| Fuel tank capacity | 56.8 liters (15 US gal.; 12.5 Imp. gal) |
| Battery | 6V |
| Cabin type | Open operator station |
| Engine | |
| Engine model | Allis Chalmers |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 4 |
| Fuel type | Tractor fuel |
| Displacement | 3.3 L, 3,293 cm2, (201.0 cu·in) |
| Bore and stroke | 102.0 mm X 102.0 mm (4.02 in X 4.02 in) |
| Compression ratio | 4.5:1 |
| Horsepower | 26.4 PS (19.4 kW; 26 HP) at rpm |
| Starter | Electric or manual |
| Coolant capacity: | 13.2 L (13.9 US. qt, 11.6 Imp. qt.) |
| Engine | |
| Engine model | Allis Chalmers |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 4 |
| Fuel type | Gasoline |
| Displacement | 3.3 L, 3,293 cm2, (201.0 cu·in) |
| Bore and stroke | 102.0 mm X 102.0 mm (4.02 in X 4.02 in) |
| Compression ratio | 5.75:1 |
| Horsepower | 26.4 PS (19.4 kW; 26 HP) at rpm |
| Starter | Electric or manual |
| Transmission and chassis | |
| Chassis | 4×2 2WD |
| Steering type | Manual worm and horizontal sector |
| Brakes | Manual external compression band type |
| Transmission model | – |
| Transmission type | Non-synchronized gear |
| Gears | 4 forward and 1 reverse |
| Speed | Forward: 15.7 kmh (9.8 mph) Reverse: 3.6 (2.2 mph) |
| Tires | |
| Front tires | Ag: 5.50-16 |
| Rear tires | Ag: 11-28 |
| Three-Point Hitch | |
| Caterogy | Single Hitch Point |
| Control type | – |
| Lift capacity (at ends) | – |
| PTO (Power take-off shaft) | |
| Rear PTO type | Transmission or live (optional) |
| Rear PTO speed | 540 rpm |
| Hydraulic system | |
| Hydraulic type | Open center |
| Hydraulic capacity | 4.7 L (4.97 US. qt, 4.14 Imp. qt.) |
| Pressure | 1200 psi (82.7 bar) |
| Valves | 1 |
I have a WD wide front end. Serial number on back left of the differential housing is HIW 237862. What year is it? Could not find this number in list.