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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.

Allis-Chalmers CA Paint Reference

For restoration planning, the Allis-Chalmers CA is listed in the Allis-Chalmers tractor paint guide with the original paint references below.

Allis-Chalmers CA paint reference by production period
Production period Metal Wheels Disc Chassis Trim
1929 through 1960 Persian Orange 1 Persian Orange 1 Persian Orange 1, Aluminum Persian Orange 1 Persian Orange 1

Paint placement can vary by production year, series, and equipment configuration.

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  • A semi-circular metal Woodruff key, designed for Allis-Chalmers CA, D10, D12 farm tractors, used for securing rotating parts to a shaft.

    Woodruff Key, Allis Chalmers CA, D10, D12

    DJS Tractor Parts
    $2.00
    70911233
    3/16" × 7/8" Woodruff Key Part Number: 70911233 Fits Allis Chalmers: CA, D10, D12 International / Farmall: Super A, Sup
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  • Zenith Carburetor Float, used display product for carburetor adjustment and operation.

    Zenith Carburetor Float (Display)

    $13.50
    689
    This display unit has sold. This model is available new: View Zenith Carburetor Float available new → Zenith carburetor float for listed applications. Verify your carburetor manufacturer number...
    Out of stock
  • Radiator Shutter Crank for Allis Chalmers B, C, CA, IB, used display part with orange painted metal shaft and handle.

    Radiator Shutter Crank for Allis Chalmers B, C, CA, IB (Display)

    $29.25
    684
    Radiator shutter crank handle for listed Allis Chalmers tractors and AC power units. Part Number: KI1099 Fits Allis Chalmers: B, C, CA, IB; serviceable for WC, WF, WD, WD45 AC Power Unit: W201,...
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  • 3-1/2 inch Monroe Seat Pivot Support Rod, used automotive part displayed on a flat surface.

    3-1/2" Monroe Seat Pivot Support Rod(Display)

    $16.50
    679
    3-1/2" Monroe Seat Pivot Support Rod for select Allis Chalmers, International, John Deere, and Massey Harris tractors. Exact copy of original and includes 2 flat washers, 2 rubber bushings, and 2 #5...
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  • Delco Distributor Terminal Insulator Assembly Square Style - AB-500D, used part displayed with a black insulator and metal terminal components on a brown surface.

    Delco Distributor Terminal Insulator Assembly Square Style - AB-500D (Display)

    $12.00
    674
    Delco Distributor Terminal Insulator Assembly, Square Style Important: AB-500D is a square-style Delco distributor terminal insulator assembly. It is for Delco distributors only and will not fit IH...
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  • Delco Distributor Cap Spring Clip AB-488SD, display of a metal spring clip and its mounting plate on a brown surface with a label.

    Delco Distributor Cap Spring Clip AB-488SD (Display)

    $12.00
    673
    Distributor Cap Spring Clip AB-488SD AB-488SD is a Delco distributor cap spring clip with the shorter bracket. It includes 1 spring clip, 1 bracket, 1 screw, and 2 washers. The bracket measures .700"...
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  • Delco Distributor Cap Spring Clip With Longer Bracket, metal splitter clip with extended bracket for distributor cap

    Delco Distributor Cap Spring Clip With Longer Bracket (Display)

    $12.00
    672
    Product Overview Distributor cap spring clip with a 1" long bracket, one screw, and two washers. Longer bracket than the bracket in ABC488S. Fits Allis Chalmers: B, IB, C, CA, G, RC, WC, WF, WD,...
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  • Allis-Chalmers Snap Coupler Bell Hook Spring 70226514, used part displayed on a brown surface with a label below indicating it's for display.

    Allis-Chalmers Snap Coupler Bell Hook Spring 70226514 (Display)

    $15.00
    667
    Allis-Chalmers snap coupler bell hook spring for the listed tractors with quick hitch system. Use the fitment information below to confirm application. Part Number: 70226514 Fits Allis-Chalmers...
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  • Bullet Tail Light Trim Ring, black metal circular display part for vehicle tail light assembly.

    Bullet Tail Light Trim Ring (Display)

    $9.50
    666
    Bullet Tail Light Trim Ring for select tractor tail lights. Verify fitment against your existing tail light before ordering. Part Number: OL-071D Fits Allis Chalmers: B, C, CA, G, WD,...
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  • Rim Stop Bolt for Allis Chalmers, Case, Ford, JD, Massey Ferguson, display showing a metallic bolt with a hexagonal head, screw threads, and a tapered end.

    Rim Stop Bolt for Allis Chalmers, Case, Ford, JD, Massey Ferguson (Display)

    $7.00
    662
    Rim stop bolt for listed tractor models from Allis Chalmers, Case, Cockshutt, Ford, IH/Farmall, JD, Massey Ferguson, Massey Harris, MM, Oliver, White, and Landini. Use with parallel or 90 degree...
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  • Allis Chalmers B, C, CA Brake Pivot Pin / Toggle Pin 70207221, display image of a metal cylindrical pin with a hole in the center on a brown background.

    Allis Chalmers B, C, CA Brake Pivot Pin / Toggle Pin 70207221 (Display)

    $7.75
    657
    Brake pivot pin / toggle pin for Allis Chalmers B, C, and CA tractors. Replaces part numbers 207221 and 70207221. This pin is 1.625 in. long and 0.750 in. in diameter. Zinc plated finish. Part...
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  • Allis-Chalmers B C CA Brake Adjusting Screw 70213375, used part displayed on a brown surface with a label showing the part number and description.

    Allis-Chalmers B C CA Brake Adjusting Screw 70213375 (Display)

    $18.25
    656
    Allis-Chalmers Brake Adjusting Screw 70213375 Brake adjusting screw for Allis-Chalmers B, C, and CA tractors. Zinc plated, 7/16"-20 NF x 3" long. Fits Allis-Chalmers B Allis-Chalmers...
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  • Allis Chalmers Gear Shift Lever Pins, Pair Oversized (Display), two metal pins with different sizes and shapes on a brown background with a white label showing the number 653 and 'Used Parts / Display' text.

    Allis Chalmers Gear Shift Lever Pins, Pair Oversized (Display)

    $11.75
    653
    Allis Chalmers gear shift lever pins, pair, oversized. AC-253D is used to tighten up a worn shift lever and must be ground to fit the existing worn lever. Part Number: AC-253D Fits Allis Chalmers...
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