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About the Allis-Chalmers CA

Make sure you have access to your tractor serial number, because there is a chance that the Allis-Chalmers CA parts you need depend on that serial number. Usually, the serial number is printed on top of transmission, by shift lever. That serial number is determined by the year of manufacturing, so for a 1950 model, it starts with 14, for a 1951 model it starts with 322, for a 1952 model it starts with 10539, for a 1953 model it starts with 22181, for a 1954 model it starts with 31424, for a 1955 model it starts with 32907, for a 1956 model it starts with 37203, for a 1957 model it starts with 38618, for a 1958 model it starts with 38977, for a final model it starts with 39513. They also have differential mechanical contracting band brakes. The 3-point hitch is very reliable. It is also worth noting that the live rear PTO runs at 538 rpms.

Parts for Allis-Chalmers CA Tractor

Universal View All Universal Products



Cooling System

Engine Overhaul Kits

Engine Parts

125 Gas

B125 Gas

Exhaust System Parts


Gaskets/Gasket Sets



Fuel System

Ignition & Electrical Parts

Mufflers/Exhaust Pipes

PTO Components

Rims & Wheels


Service Manual

Transmission & Rear Axle

Allis-Chalmers CA Tractor Manuals