allis chalmers hd21
![]() | 1954 - 1965
Model year 1954-19581958-1965
Agricultural Crawler tractor | 1954 - 1965 | Model year 1954-19581958-1965 | Agricultural Crawler tractor |
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1954 - 1965 | ||||
Model year 1954-19581958-1965 | ||||
Agricultural Crawler tractor | ||||
1954 - 1965 | |
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Model year 1954-19581958-1965 | |
Agricultural Crawler tractor |
Production | |
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Manufacturer | Allis Chalmers |
Agricultural Crawler tractor | |
Built in Springfield, Illinois, USA | |
Allis Chalmers HD21 Engine | |
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Allis-Chalmers 13.8L 6-cyl diesel | |
Fuel tank | 135 gal
511.0 L |
Engine details ... | |
Allis Chalmers HD21 Transmission | |
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2-speed torque converter | |
Transmission details ... |
Allis Chalmers HD21 Power | |
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Engine | 225 hp
167.8 kW |
Drawbar (tested) | 135.12 hp
100.8 kW |
Performance test details ... | |
Mechanical | |
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Drive | crawler |
Contracting band brakes | |
Open operator station. | |
Photos | |
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Allis Chalmers HD21 photos... |
Dimensions & Tracks | |
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Weight | 45500 lbs
20638 kg |
Tracks | |
Full dimensions and tracks ... | |
HD21 Serial Numbers | |
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Location: | Steering clutch housing or instrument panel |
References | |
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Engineering-in-Action published in 1956, by Allis Chalmers |


