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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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  • Four repeated sets of black, silver, and gold-toned piston rings arranged on a white background for an Allis-Chalmers B, C, or CA farm tractor with a four-cylinder engine.

    Piston Ring Set 4-Cylinder - Allis-Chalmers B C CA

    Allis-Chalmers
    $125.75
    AB-2086D
    Piston ring set for select 4-cylinder engines with 3-7/16" bore. Measure old rings before ordering, and rings can not be returned if opened.Part Number: AB-2086DFitsAllis Chalmers - B, C, CA, IB, RC...
  • Product image showing four repeated sets of piston rings for Allis-Chalmers B, C, and CA farm tractors. Each set contains several circular metal rings in different finishes, including dark rings, a silver ring, and a segmented ring. Watermarks read “DJSTractorParts.com” and “FOR ILLUSTRATIVE PURPOSES ONLY.”

    Piston Ring Set (4-Cylinder) - Allis Chalmers B C CA

    Allis-Chalmers
    $125.75
    AB-2072D
    Piston ring set for select 4-cylinder engines with 3-7/16" bore and (2) oil rings. Measure before ordering, and rings can not be returned if opened.Part Number: AB-2072DFitsAllis Chalmers - B, C, CA,...
  • Four sets of piston rings for an Allis-Chalmers 4-cylinder farm tractor, arranged in a grid on a white background. Each set contains black and silver split rings and a corrugated metallic oil ring; a DJSTractorParts.com watermark crosses the image.

    Piston Ring Set 4-Cylinder - Allis-Chalmers

    Allis-Chalmers
    $58.50
    AB-2070D
    Piston ring set for select 4-cylinder engines with 3-3/8" overbore. Measure before ordering, and rings cannot be returned if opened.Part Number: AB-2070DFitsAllis Chalmers - B, C, CA, IB, RC (with...
  • Allis-Chalmers Distributor Hold Down Clamp, a metallic mechanical component used for securing distributor assemblies in agricultural or industrial machinery.

    Distributor Hold Down Clamp

    Allis-Chalmers
    $7.75
    AB-2523D
    Distributor hold down clamp for Delco distributor applications. Sold individually and used 2 per engine.Part Number: AB-2523DFitsAllis Chalmers - B, C, CA, D10, D12, D14, D15, D17, IB, WC, WD, WD45,...
  • Bright orange, rounded Allis-Chalmers farm tractor seat cushion with a raised padded rim and smooth center, shown against a white background.

    Orange Tractor Seat Pad Cushion 19"

    Allis-Chalmers
    $39.75
    YF30ORG
    Orange tractor seat pad cushion with drawstring. Fits listed Allis-Chalmers, Case, and Cockshutt tractors with round pan seats.Part Number: YF30ORGFitsAllis Chalmers - B, C, CA, D10, D12, D14, D15,...
  • Allis-Chalmers Bullet Tail Light Base Gasket, black rubber gasket with central and side holes for mounting

    Bullet Tail Light Base Gasket

    Allis-Chalmers
    $2.00
    AB-1979D
    Bullet tail light base gasket for Allis-Chalmers, International, and John Deere. Use the fitments and replacement references below for verification.Part Number: AB-1979DFitsAllis Chalmers - B, C, CA,...
  • Allis-Chalmers tractor ignition key switch with a brass-colored cylindrical switch, two attached yellow and black wires with ring terminals, and two keys.

    Allis-Chalmers Key Switch Ignition Switch 70225310

    Allis-Chalmers
    $13.50
    AB-065D
    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...
  • Four black tailored spark plug wires with angled metal ends and black boots, arranged on a white background. For Allis-Chalmers B, C, IB, and RC farm tractors.

    Tailored Spark Plug Wire Set for Allis Chalmers B, C, IB, RC

    Allis-Chalmers
    $39.75
    AC-1548D
    Original type preassembled spark plug wire set with cotton braid copper wire.Part Number: AC-1548DFitsAllis Chalmers: B, C, IB, RCCombines: 60, 66, 72, 90Power Unit: B125, B15Replaces / Cross...
  • Set of five black spark plug wires with metal and rubber ends, arranged on a white background, for Allis-Chalmers B, C, CA, and IB farm tractors.

    Tailored Spark Plug Wire Set for Allis Chalmers B, C, CA, IB

    Allis-Chalmers
    $42.75
    AC-1552D
    Original type pre-assembled spark plug wire set with cotton braid copper wire.Part Number: AC-1552DFitsAllis Chalmers: B, C, CA, IB (Wi/Distributor)Power Unit: B125, B15 (Wi/Distributor)Replaces /...
  • Rust-brown, bent steel upper generator adjusting bracket for an Allis-Chalmers farm tractor, with a round mounting hole in one arm and an elongated slot in the other.

    Allis Chalmers Upper Generator Adjusting Bracket AC-1976D

    Allis-Chalmers
    $24.95
    AC-1976D
    Part Number: AC-1976DUpper Generator Adjusting BracketUpper generator adjusting bracket for Allis Chalmers tractors. Fitment and replacement numbers are listed below.FitsAllis Chalmers B (SN: 55301 &...
  • Bent steel fuel line with brass threaded fittings at both ends, for Allis-Chalmers B, C, CA, D10, and D12 farm tractors.

    Fuel Line Steel for Allis Chalmers B, C, CA, D10, D12

    Allis-Chalmers
    $32.75
    AC-1974D
    Steel fuel line for select Allis-Chalmers tractors.Part Number: AC-1974DFitsAllis Chalmers: B, IB, C, CA, D10, D12Replaces / Cross Reference702072787021547870243108Specs13-1/8" O/A length1/4" tube O...
  • Close-up of a circular metal front wheel bearing seal with a felt outer ring, for Allis-Chalmers B, C, CA, D10, and D12 farm tractors.

    Front Wheel Bearing Seal for Allis Chalmers B C CA D10 D12

    Allis-Chalmers
    $33.25
    70207365
    Front wheel bearing seal for select Allis Chalmers models. AGCO brand steel & felt seal with measurements listed below.Part Number: 70207365FitsAllis Chalmers: B, C, CA, D10, D12Replaces / Cross...
  • Close-up of a metal thermostat with a brass-colored bellows and black top, for Allis-Chalmers farm tractor models B, C, CA, IB, WD45, D17, D10, D12, D14, D15, H3, 170, and 175.

    Thermostat for Allis-Chalmers B, C, CA, IB, WD45, D17, D10, D12, D14, D15, H3, 170, 175

    Allis-Chalmers
    $28.75
    ACR2225
    180 DegreesThermostat for select Allis-Chalmers, Case, Cockshutt, Massey Ferguson, and Massey Harris applications.Part Number: ACR2225FitsAllis Chalmers: B, C, CA, IB, WD45, D17, D10, D12, D14, D15,...
  • Gray rectangular metal battery box side panel for an Allis-Chalmers farm tractor, with a small mounting hole near one upper corner.

    Allis Chalmers Battery Box Side - DJS063S

    Allis-Chalmers
    $49.00
    DJS063S
    OverviewUSA made battery box side for Allis Chalmers tractors. Part Number: DJS063S.FitsAllis Chalmers BAllis Chalmers GAllis Chalmers CAllis Chalmers CAAllis Chalmers D10Allis Chalmers D12Allis...
  • Allis-Chalmers Viton needle float valve kit C102V for farm tractors, shown with a brass threaded valve seat, brass needle valve with black Viton tip, reddish-brown sealing washer, and metal retaining clip on a white background.

    Allis-Chalmers Viton Needle Float Valve C102V

    Allis-Chalmers
    $15.50
    C102V
    Viton needle float valve for Allis-Chalmers tractors. Fits multiple models and replaces Zenith 70233914.Part Number: C102VFitsAllis-Chalmers BAllis-Chalmers CAllis-Chalmers CAAllis-Chalmers...
  • Roll of black 2-inch fuel tank webbing for Allis-Chalmers farm tractors, with a short length unrolled.

    Allis-Chalmers Fuel Tank Webbing - Black 2"

    Allis-Chalmers
    $2.75
    351T84
    Black fuel tank webbing sold per foot. Fits tractors using webbed insulation between fuel tank mounts and sheet metal parts.Part Number: 351T84FitsAllis Chalmers: variousCase: Fits various...
  • A coil of tan 1-inch fuel tank webbing with a short length unrolled, for Allis-Chalmers farm tractors.

    Allis-Chalmers Fuel Tank Webbing - Tan 1"

    Allis-Chalmers
    $3.25
    3531T51
    Tan fuel tank webbing sold per foot. Fits tractors using webbed insulation between fuel tank mounts and sheet metal parts.Part Number: 3531T51FitsAllis Chalmers: Fits various modelsCase: Fits various...
  • Roll of white 1-inch fuel tank webbing for Allis-Chalmers farm tractors, with a short strip extending from the roll.

    Allis-Chalmers Fuel Tank Webbing - White 1"

    Allis-Chalmers
    $1.75
    88445K45
    White fuel tank webbing sold per foot. Fits tractors using webbed insulation between fuel tank mounts and sheet metal parts.Part Number: 88445K45FitsAllis Chalmers: variousCase: variousCockshutt:...