Allis Chalmers industrial tractors
Allis Chalmers HD-21 Series B
The Allis Chalmers HD-21 Series B is an industrial crawler tractor produced from 1969 to 1974. It features a powerful 273 hp turbocharged diesel engine, a 2-speed power shift transmission, and an open operator station. Designed for heavy-duty industrial applications, it is a robust crawler tractor built by Allis Chalmers.
Power-
Founded-
ModelHD-21 Series B
Technical Specifications
Detailed specifications and technical data for Allis Chalmers HD-21 Series B
Power
| Engine power | 273 hp (203.6 kW) |
|---|
Engine
| Type | turbocharged diesel |
|---|---|
| Model | Allis Chalmers 21000 II |
| Power | 273 hp (203.6 kW) |
| Cooling | liquid-cooled |
| Starter | electric |
| Cylinders | 6-cylinder |
| Bore/Stroke | 5.25x6.50 inches (133 x 165 mm) |
| Displacement | 844 ci (13.8 L) |
| Starter volts | 24 |
Electrical
| Charging amps | 20 |
|---|---|
| Charging system | alternator |
Mechanical
| Drive | crawler |
|---|---|
| Operator station | Open operator station |
Production
| Type | Industrial Crawler tractor |
|---|---|
| Manufacturer | Allis Chalmers |
| Years produced | 1969 - 1974 |
Transmission
| Type | power shift |
|---|---|
| Gears | 2 forward and reverse |
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