Allis Chalmers CA

Allis Chalmers CA Technical Specifications

Allis Chalmers CA is a Row-Crop tractor that was produced by the John Deere between 1950 – 1958.

Below you will find detailed technical specifications for Allis Chalmers CA covering engine types, horsepower ratings, weight, height, fuel type and tank volume, oil capacity and type, hydraulic system diagram, wiring diagram, battery specs, etc.

Allis Chalmers CA Production

Manufacturer: Allis Chalmers
Type: Row-Crop tractor
Factory: West Allis, Wisconsin, USA
Total built: 39,499
Original price: $1,900 (1958 )
The live PTO on the CA was due to a hand clutch that “broke” the rear axle, causing the differential to spin freely.

Allis Chalmers CA Power

Drawbar (claimed): 18 hp
13.4 kW
PTO (claimed): 23 hp
17.2 kW
Drawbar (tested): 22.97 hp
17.1 kW
Belt (tested): 25.96 hp
19.4 kW

Allis Chalmers CA Electrical

Ground: positive
Charging system: generator
Charging amps: 10
Battery volts: 6
Battery AH: 95

Allis Chalmers CA Mechanical

Chassis: 4×2 2WD
Steering: manual
Brakes: differential mechanical contracting band
Cab: Open operator station
Transmission: 4-speed non-synchronized


Fuel: 13 gal
49.2 L
Hydraulic system: 2 gal
7.6 L


Capacity: 2 gal
7.6 L
Pressure: 3200 psi
220.6 bar

Tracktor Hitch

Type: Allis Snap Coupler*Available after 1954.

Power Take-off (PTO)

Rear PTO: live
Rear RPM: 538

Title serial numbers

Location: On top of transmission, by shift lever
1950: 14
1951: 322
1952: 10539
1953: 22181
1954: 31424
1955: 32907
1956: 37203
1957: 38618
1958: 38977
Final: 39513

how to read serial numbers…

What year is my Allis Chalmers CA? Serial Number Decoder

The serial number list shows the first tractor built in each year. The other tractors for that year will have successively higher numbers. Your serial number should be between two of the stated numbers.

The list only includes the numbers of the first tractors produced in each year. Your serial should be somewhere between two numbers.Unless you happen to be the first person to own a tractor, your number will not appear on the list.

Allis Chalmers CA Engine detail

Engine Detail
Allis Chalmers
4-cylinder 8-valve
liquid-cooled vertical I-head
Displacement: 125.2 ci
2.1 L
Bore/Stroke: 3.375×3.50 inches
86 x 89 mm
Air cleaner: oil bath
Compression: 6.25:1
Rated RPM: 1650
Firing order: 1-2-4-3
Starter volts: 6
Coolant capacity: 9 qts
8.5 L
Sparkplug: AC45
  Autolite A-7
  Autolite A-9
  Champion J-8
Sparkplug gap: 0.030 inches
0.762 mm
Point gap: 0.020 inches
0.508 mm
Intake valve clearance: 0.012 inches
0.305 mm (hot)
Exhaust valve clearance: 0.012 inches
0.305 mm (hot)

Allis Chalmers CA Transmission overview

Engine Oil

Type: non-synchronized
Gears: 4 forward and 1 reverse
Clutch: dry disc
Oil capacity: 4 qts
3.8 L

Allis Chalmers CA Dimensions

Wheelbase: 82 inches
208 cm
Length: 125 inches
317 cm
Height: 73 inches
185 cm
Operating weight: 2835 lbs
1285 kg
Ballasted weight: 5045 lbs
2288 kg
Front tread: 6.25/13 inches
15/33 cm
Rear tread: 52 to 80 inches
132 to 203 cm

Allis Chalmers CA Tests

Nebraska Tractor Test 453

Nebraska Tractor Test 453
Gasoline 4-speed 2WD
November 31 – 9, 1950
Link: Nebraska Tractor Test 453 file
Belt power (max): 25.96 hp
19.4 kW
Belt fuel use (max): 2.4 gal/hour
9.1 l/hour
Drawbar performance
Max power: 22.97 hp
17.1 kW
Gear 2 used for power test.
Max pull: 3,557 lbs
1613 kg
Gear 1 used for pull test.


Is Allis Chalmers CA a good tractor?

The Allis Chalmers CA is one of the great tractors in the Allis Chalmers stable, and it has earned Allis Chalmers a fantastic reputation.

How much oil does a Allis Chalmers CA take?

Check out the Allis Chalmers CA oil capacity and oil type in the engine specs section as it may vary across the engines. Keep in mind, that older models might have their oil capacity increased over time. You may compare between the early and late oil capacity.

Do tractors have VIN numbers?

Every tractor has a VIN number. The number is usually engraved below the driver’s seat. Tractor manufacturers put the number in different places on the tractor body.

What was the last year Allis Chalmers made the CA?

The Allis Chalmers CA was an agricultural tractor model made from 1950 – 1958

Where is the serial number on a Allis Chalmers CA?

Lookup on top of transmission, by shift lever

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