Allis Chalmers HD21

Allis Chalmers HD21 tractor photo
1954 - 1965
Model year
Agricultural Crawler tractor
ManufacturerAllis Chalmers
Agricultural Crawler tractor
Built in Springfield, Illinois, USA
Allis Chalmers HD21 Engine
Allis-Chalmers 13.8L 6-cyl diesel
Fuel tank135 gal
511.0 L
Engine details ...
Allis Chalmers HD21 Power
Engine225 hp
167.8 kW
Drawbar (tested)135.12 hp
100.8 kW
Performance test details ...
Contracting band brakes
Open operator station.
HD21 Serial Numbers
Location:Steering clutch housing or instrument panel
HD21 references literature
Engineering-in-Action published in 1956, by Allis Chalmers
Page information
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Peter Easterlund - owner/author
Updated on September 2, 2023
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