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Allis Chalmers CA Tractor Parts

About the Allis-Chalmers CA

The Model CA followed the Model C in 1950 and gave small farms a little more speed and flexibility. It kept the compact row-crop layout and four-cylinder engine, but added a four-speed transmission and a live PTO operated by a hand clutch. That hand clutch lets the PTO keep turning while the tractor is stopped, which is useful with a mower or other PTO-driven equipment.

Built at West Allis from 1950 through 1958, the CA remained a practical tractor for cultivation, mowing, and general farm work. The model is a useful step between the older C and the newer D Series.

Serial Number Reference

Serial number locations: The tractor serial number is stamped on top of the transmission case, next to the shift lever. The engine serial number is on the rear left-hand side of the engine.

The table below shows the beginning tractor serial number for each Model CA year:

 

1950-1952
Model CA year Beginning serial number
1950 14
1951 322
1952 10,539
1953-1955
Model CA year Beginning serial number
1953 22,181
1954 31,424
1955 32,907
1956-1958
Model CA year Beginning serial number
1956 37,203
1957 38,618
1958 38,977

Total production: 39,499 Model CA tractors.

The final CA serial number was 39,513.

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  • 6 Volt Voltage Regulator for Allis-Chalmers, black rectangular display unit with electrical terminals on the side, used parts display

    6 Volt Voltage Regulator for Allis-Chalmers (Display)

    $34.25
    634
    6 volt external voltage regulator for selected tractors and generators. For positive ground systems with an A-type circuit and 7 to 9 amp output. Part Number: AB-153D Fits Allis Chalmers - B, C, CA,...
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  • Universal Ammeter Gauge (20-0-20), display of black meter with white markings and needle indicating current in amperes.

    Universal Ammeter Gauge (20-0-20) (Display)

    $15.75
    623
    Universal ammeter gauge with a 20-0-20 range and chrome bezel. Compatible with Allis-Chalmers, Case, Cockshutt, Ford, IH/Farmall, John Deere, Massey Ferguson, Massey Harris, MM, and Oliver...
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  • Universal Oil Pressure Gauge 0-30 LB, black dial display with white markings and needle, used for monitoring oil pressure in engines.

    Universal Oil Pressure Gauge 0-30 LB (Display)

    $17.50
    619
    Universal oil pressure gauge with a 0-30 LB range for the applications listed below. Includes verified Allis-Chalmers and John Deere fitment and replacement numbers. Part Number: AB-004D Fits Allis...
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  • Allis-Chalmers 6 Volt Generator Cut Out Relay Assembly, display view showing electrical relay with metal mounting brackets and 6V label.

    Allis-Chalmers 6 Volt Generator Cut Out Relay Assembly (Display)

    $22.25
    631
    6 volt generator cut out relay assembly for the listed tractor applications. For Autolite and Delco generators with mounting tabs parallel with cut out. Part Number: AB-015D Fits Allis Chalmers: B,...
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  • Universal Ammeter Gauge (20-0-20), analog display of current in amperes with a needle and a black faceplate with measurement markings.

    Universal Ammeter Gauge (20-0-20) (Display)

    $15.75
    630
    Universal ammeter gauge with a 20-0-20 range and chrome bezel. Compatible with Allis-Chalmers, Case, Cockshutt, Ford, IH/Farmall, John Deere, Massey Ferguson, Massey Harris, MM, and Oliver...
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  • Allis Chalmers Amp Gauge, round meter displaying current ampere readings with 'Charge' and 'Discharge' indicators.

    Allis Chalmers Amp Gauge (Display)

    $23.75
    629
    Allis Chalmers amp gauge with a chrome bezel and restoration quality finish. Fits the Allis Chalmers models listed below. Part Number: AC-258D Fits Allis Chalmers: B, C, CA, G, WC, WD, WD45, WD45D,...
    Out of stock
  • Allis Chalmers Amp Gauge, a circular analog ammeter display showing amperes with a needle indicator and a white dial face.

    Allis Chalmers Amp Gauge (Display)

    $23.75
    612
    Allis Chalmers amp gauge with a chrome bezel and restoration quality finish. Fits the Allis Chalmers models listed below. Part Number: AC-258D Fits Allis Chalmers: B, C, CA, G, WC, WD, WD45, WD45D,...
    Out of stock
  • Allis Chalmers Amp Gauge (60-0-60) 12 Volt, a round electrical gauge with a white face, black markings, and a needle indicating zero, used for measuring electrical current in amps, displayed on a brown background.

    Allis Chalmers Amp Gauge (60-0-60) 12 Volt (Display)

    $23.75
    611
    12 volt Allis Chalmers amp gauge with a 60-0-60 scale and the Allis Chalmers logo. Part Number: AC-1833D Fits Allis Chalmers - Various (Any tractors that have been converted to 12 volt...
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  • Starter Switch for Allis-Chalmers B C CA G IB RC WC WD WD45 WF, image showing a used original starter switch component for classic Allis-Chalmers tractors.

    Starter Switch for Allis-Chalmers B C CA G IB RC WC WD WD45 WF (Display)

    $10.25
    598
    Part Number: AB-012D Starter Switch for Allis-Chalmers B C CA G IB RC WC WD WD45 WF Manual foot / lever starter switch with saddle mount. Does not fit Autolite starter applications...
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  • 6 Volt Starter Solenoid for Allis Chalmers B, C, IB, CA, D10, D12, D14, displayed on a cardboard surface.

    6 Volt Starter Solenoid for Allis Chalmers B, C, IB, CA, D10, D12, D14 (Display)

    $17.00
    594
    6 Volt Saddle Mount Starter Solenoid for Allis Chalmers tractors. Part Number: 70223334 Fits Allis Chalmers B Allis Chalmers IB Allis Chalmers C Allis Chalmers CA Allis Chalmers Early D10 Allis...
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  • Allis-Chalmers Key Switch Ignition Switch 70225310 with attached keys and wiring, used agricultural machinery part.

    Allis-Chalmers Key Switch Ignition Switch 70225310 (Display)

    $10.75
    581
    Key switch ignition switch for Allis-Chalmers, Case, Cockshutt, Ford, International, John Deere, Massey Ferguson, Minneapolis Moline, and Oliver. Includes 2 keys and is for AG and light industrial...
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  • 12-Volt Bullet Style Tail Light for Allis Chalmers B C CA G WD WD45 D10 D12 D14, black with red wiring and a red lens, used for tractor lighting.

    12-Volt Bullet Style Tail Light for Allis Chalmers B C CA G WD WD45 D10 D12 D14 (Display)

    $35.75
    572
    12-volt bullet style tail light for Allis-Chalmers tractors. Painted black piggy lamp. Part Number: OL-070D Fits Allis Chalmers: B, C, CA, G, WD, WD45, D10, D12, D14 Minneapolis Moline: 4 Star, 5...
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  • Allis-Chalmers 12 Volt Chrome Bullet Style Tail Light Assembly, display showing a vintage chrome bullet-shaped tail light with wiring and mounting hardware on a brown background.

    Allis-Chalmers 12 Volt Chrome Bullet Style Tail Light Assembly (Display)

    $23.25
    571
    12 volt chrome bullet style tail light assembly for select Allis-Chalmers and John Deere models. It is a 1 wire 12 volt chrome bullet style tail light assembly with a plastic lens. Part Number:...
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  • Allis-Chalmers 12 Volt Bullet Tail Light (Display), a vintage tractor tail light with metal housing, black lens, and red wiring on a display board.

    Allis-Chalmers 12 Volt Bullet Tail Light (Display)

    $38.25
    570
    12 volt bullet tail light for select Allis-Chalmers tractors. It includes a 12-volt bulb and a red glass lens. Part Number: AC-264V12D Fits Allis Chalmers: B, C, CA, G, WD, WD45, D10 (up to sn...
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  • Headlight Reflector for Allis-Chalmers and Other Models, shiny chrome round reflector with mounting hole, displayed on a brown background.

    Headlight Reflector for Allis-Chalmers and Other Models (Display)

    $11.75
    569
    Part Number: AB-320D Fits Allis Chalmers - B, C, CA, D10, D12, D14, D15 (up to sn 9001), RC, WC, WD, WD45, WF Case - VA, VAC, VAH (all up to sn 5400000) Cockshutt - 20, 30, 40, 50, 540, 550, 560,...
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