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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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  • Light Ring 4-3/4" (Display), black circular light ring used for display lighting or photography.

    Light Ring 4-3/4" (Display)

    Allis-Chalmers
    $12.50
    567
    Interchangeable with original. Part Number: IH-353BD Fits Allis-Chalmers B, IB, C, CA, D10, D12, D14, D15 (up to sn 9001), WC, WD, WD45 Avery Case VA, VAC, VAH (All up to sn 5400000) Cockshutt CO-OP...
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  • Air Cleaner Oil Cup Clamp for Allis-Chalmers B IB C CA RC G / IH IH-181D, black metal engine part with clamp and screw in display.

    Air Cleaner Oil Cup Clamp for Allis-Chalmers B IB C CA RC G / IH IH-181D (Display)

    Allis-Chalmers
    $8.50
    560
    Air cleaner oil cup clamp for Allis-Chalmers B, IB, C, CA, RC, and G tractors. New replacement part with the key reference numbers preserved: AC 225817, IH 52872D, and IHS181. Fits Allis-Chalmers:...
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  • Allis-Chalmers B IB C CA RC Air Cleaner Oil Cup AC-047D, display image of a black round oil cup for air cleaner on a beige background.

    Allis-Chalmers B IB C CA RC Air Cleaner Oil Cup AC-047D (Display)

    Allis-Chalmers
    $15.50
    559
    Air cleaner oil cup for Allis-Chalmers B, IB, C, CA, and RC tractors. Fits clamp-mounted cup applications and replaces CE13732, 70225857, and 225857. Use the dimensions below to confirm fit before...
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  • Allis-Chalmers Snap Coupler Latch Spring Oversized Loops 70235881, a metallic coil spring with large loops and eyelets at both ends for agricultural equipment.

    Allis-Chalmers Snap Coupler Latch Spring Oversized Loops 70235881

    Allis-Chalmers
    $8.75
    AC-269S
    Allis Chalmers snap coupler latch spring for the models listed below. Oversized end loops slip over the existing rivets for fast, hassle‑free installation—no need to pull the old rivets. 3-1/4"...
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  • 6 Volt Distributor Coil AB-011D, display model of a black ignition coil with electrical connectors on top on a cardboard surface

    6 Volt Distributor Coil AB-011D (Display)

    Allis-Chalmers
    $22.25
    550
    6 Volt Distributor Coil - AB-011D This 6 volt distributor coil is listed as AB-011D and fits listed tractor applications. It includes multiple cross-reference numbers across several brands...
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  • Allis Chalmers B IB C CA D10 D12 D17 D19 Clutch Cover Plate, used display image of a pinkish clutch cover plate with two metal protrusions on a brown background.

    Allis Chalmers B IB C CA D10 D12 D17 D19 Clutch Cover Plate (Display)

    Allis-Chalmers
    $15.75
    547
    Clutch Inspection Cover Plate for Allis Chalmers tractors. Includes integral spring steel clips. Part Number: AC-189D Fits B IB C CA D10 D12 D17 D19 Replaces / Cross...
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  • Allis-Chalmers Hydraulic and Transmission Oil Dipstick Cap, orange and metal dipstick tool with a plastic handle for measuring oil levels.

    Allis-Chalmers Hydraulic and Transmission Oil Dipstick Cap (Display)

    Allis-Chalmers
    $22.25
    545
    Hydraulic and transmission oil dipstick cap for select Allis-Chalmers tractors. Cap and dipstick all in one. Part Number: AC-302D Fits CA WD WD45 D10 D12 Replaces / Cross...
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  • Allis-Chalmers 4 PSI Radiator Cap, display showing used part with a metal radiator cap featuring a circular design with the word 'TIGHTEN' and 'REMOVE SLOWLY' embossed around the center.

    Allis-Chalmers 4 PSI Radiator Cap (Display)

    Allis-Chalmers
    $7.75
    538
    Allis-Chalmers 4 PSI radiator cap includes the gasket and is like the original. For 4 PSI pressurized systems with a 1.500" radiator neck ID. Part Number: AB-008D Fits Allis Chalmers: B (sn 61221 &...
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  • Cap for Fuel, Gas, Oil, or Power Steering, display view of a metallic cap with a rounded shape and central valve, used for vehicle fluid reservoirs.

    Cap for Fuel, Gas, Oil, or Power Steering (Display)

    Allis-Chalmers
    $8.00
    535
    Part Number: IH-338D Product Overview Cap can be used as an engine oil cap, auxiliary starting tank cap, power steering cap, or oil filler cap. Fits Allis Chalmers: Engine Oil Cap: G Allis Chalmers:...
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  • 7 PSI Radiator Cap for Allis Chalmers, Case, Ford, IH, John Deere, display of radiator cap on a brown background.

    7 PSI Radiator Cap for Allis Chalmers, Case, Ford, IH, John Deere (Display)

    Allis-Chalmers
    $8.50
    531
    7 PSI radiator cap. For listed applications with a 1-inch tall filler neck. Condition: New. Part Number: AB-1396D Fits Allis Chalmers - B (sn 61221 & up), C (sn 18581 and up), CA, G, RC, WC (sn...
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  • Allis-Chalmers Case Radiator Cap, used display part shown on a beige background with a label marked 530 and barcode.

    Allis-Chalmers Case Radiator Cap (Display)

    Allis-Chalmers
    $19.75
    530
    Chrome-plated radiator cap for select Allis-Chalmers and Case tractors and equipment. For pressurized systems and listed for the applications below. Part Number: AC-209D Fits Allis Chalmers - CA,...
    Out of stock
  • 160 Degree Thermostat - Allis Chalmers, Case, Cockshutt, Massey Ferguson, display showing used parts for tractor cooling system.

    160 Degree Thermostat - Allis Chalmers, Case, Cockshutt, Massey Ferguson (Display)

    Allis-Chalmers
    $27.75
    507
    160 degree thermostat for select Allis Chalmers, Case, Cockshutt, Massey Ferguson, and Massey Harris models. Part Number: AB-1898D Fits Allis Chalmers - D10, D12, D14, D15 with 4 bolt housing. WD,...
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  • Thermostat 160 Degrees for Allis-Chalmers and More, displaying a used metal component with a label indicating it's a display item.

    Thermostat 160 Degrees for Allis-Chalmers and More (Display)

    Allis-Chalmers
    $31.75
    506
    Thermostat 160 degrees with a 2.600" length and 2.510" flange diameter. Fits the listed tractor applications below. Part Number: IH-913D Fits Allis Chalmers: B (Engine SN: 126210 & up when equipped...
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  • Fuel Bail Assembly (Short Bowl), metal component with adjustable screw, used for fuel system maintenance or repair.

    Fuel Bail Assembly (Short Bowl) (Display)

    Allis-Chalmers
    $6.00
    501
    Fuel Bail Assembly (Short Bowl) for Allis-Chalmers and other listed tractor models. New part. Part Number: AB-563D Fits Allis Chalmers: B, IB, C, CA, D10, D12, D14, D15 Gas (up to sn 9001), D17 Gas...
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  • Allis-Chalmers Distributor Cap Delco ACR1944, displayed used parts or show model for sale.

    Allis-Chalmers Distributor Cap Delco ACR1944 (Display)

    Allis-Chalmers
    $15.00
    493
    New Delco distributor cap for Allis-Chalmers and other tractors using clip-held Delco conversion distributors. Key part number: ACR1944. Replacement numbers: Allis Chalmers 225733; Delco 811735; Case...
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  • Allis-Chalmers B C CA Toolbox Door, display of a used blue toolbox door with scratches and weathering, labeled with an orange tag reading '485 USED PARTS / DISPLAY'.

    Allis-Chalmers B C CA Toolbox Door (Display)

    Allis-Chalmers
    $19.25
    485
    Replacement toolbox door for Allis-Chalmers B, C and CA tractors. Use for replacing a missing or damaged toolbox door on the listed models. Part Number: KI1005 Fits Allis-Chalmers B Allis-Chalmers...
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  • Allis Chalmers B IB C CA Under Hood Muffler, display model of a used tractor muffler with a cylindrical shape and a vertical pipe, placed on a brown background with an orange tag numbered 481.

    Allis Chalmers B IB C CA Under Hood Muffler (Display)

    Allis-Chalmers
    $60.50
    481
    Aftermarket remake of the OEM muffler for Allis Chalmers B, IB, C, and CA tractors. Part Number: ACR1558 Fits Allis Chalmers: B, IB, C, CA Replaces / Cross Reference 210081 70210081 Specs Shell...
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