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Allis Chalmers C Tractor Parts

About the Allis-Chalmers C

Allis-Chalmers built the Model C as a small row-crop tractor for farms that needed more room and capability than the Model B. Introduced in 1940, it used a 125-cubic-inch four-cylinder engine and a simple three-speed transmission. Its compact size and row-crop layout made it useful for cultivating, general farm work, and smaller fields.

The Model C was built at West Allis, Wisconsin, through 1949. The CA followed it in 1950, making the C an important link between the early B and the later compact tractors.

Serial Number Reference

Serial number locations: The tractor serial number is stamped on top of the transmission case, behind 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 C year:

 

1940-1943
Model C year Beginning serial number
1940 1
1941 112
1942 12,389
1943 18,782
1944-1946
Model C year Beginning serial number
1944 23,908
1945 30,695
1946 36,378
1947-1949
Model C year Beginning serial number
1947 39,168
1948 51,515
1949 68,281

Total production: 84,020 Model C tractors.

Allis-Chalmers C Paint Reference

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

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

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

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  • Allis-Chalmers Allis Chalmers PTO Guard (Shield) - B, IB, C, CA, D10, D12 - 70231775

    Allis Chalmers PTO Guard (Shield) - B, IB, C, CA, D10, D12

    Allis-Chalmers
    $95.00
    70231775
    Allis Chalmers PTO Guard (Shield) for B, IB, C, CA, D10, and D12 tractors. Comes primered.Part Number: 70231775FitsAllis Chalmers BAllis Chalmers IBAllis Chalmers CAllis Chalmers CAAllis Chalmers D10...
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  • Allis-Chalmers Allis Chalmers Front Tricycle Lower Spindle Shaft Seal - B,IB,C,CA - 70210289

    Allis Chalmers Front Tricycle Lower Spindle Shaft Seal - B, IB, C, CA

    Allis-Chalmers
    $36.50
    70210289
    Allis Chalmers front tricycle lower steering spindle shaft seal for B, IB, C, and CA models.Part Number: 70210289FitsBIBCCAReplaces / Cross Reference70210289210289Specs2.760" OD1.670" ID0.313" wide
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  • Allis-Chalmers Allis Chalmers Front Tricycle Upper Spindle Shaft Seal - B,IB,C,CA - 70210293

    Allis Chalmers Front Tricycle Upper Spindle Shaft Seal - B, IB, C, CA

    Allis-Chalmers
    $32.25
    70210293
    Allis Chalmers front tricycle upper steering spindle shaft seal for B, IB, C, and CA models.Part Number: 70210293FitsBIBCCAReplaces / Cross Reference70210293210293Specs1.953" OD1.330" ID0.340" wide
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  • Allis-Chalmers 2" Sediment Bowl Gasket (NBR) - 70208362

    2" Sediment Bowl Gasket (NBR)

    Allis-Chalmers
    $1.70
    70208362
    2" sediment bowl gasket made from nitrile butadiene rubber (NBR).Part Number: 70208362FitsAllis Chalmers - B, C, CA, G, D10, D12, D14, D15 (Gas To Sn# 9000), D17 (Gas To Sn# 42000), I40, I400, I60,...
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  • Allis-Chalmers Universal 2 Position Push Pull - Ignition - Light Switch - SSW2809

    Universal 2 Position Push Pull Ignition Light Switch

    Allis-Chalmers
    $7.50
    SSW2809
    Universal 2 position push/pull switch for ignition or light use. It is non-fused and includes a plastic knob. Part Number: SSW2809 Fits Allis Chalmers - Various Case - Various Cockshutt -...
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  • Allis-Chalmers Tractor Parts Catalog 2025, vintage farm tractor parts catalog cover with sunset landscape background.

    Allis Chalmers Tractor Parts Catalog

    Allis-Chalmers
    $0.00
    0000
    The Allis Chalmers Tractor Parts Catalog (2025) is a comprehensive parts guide for Allis Chalmers tractors. It is available as a hard copy and as a printable PDF catalog. Part Number: 0000 Current...
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  • Allis-Chalmers Camshaft Bearing Bushing Set for Allis-Chalmers B C CA IB RC, stainless steel engine components.

    Camshaft Bearing Bushing Set for Allis-Chalmers B C CA IB RC

    Allis-Chalmers
    $39.75
    AC-2757D
    Camshaft Bearing (bushing) Set for Allis-Chalmers B, C, CA, IB, and RC with 116 CI or 125 CI engines.This is a 3-piece set.Part Number: AC-2757DFitsAllis-Chalmers B, C, CA, IB, RC with 116 CI or 125...
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  • Allis-Chalmers Clevis Pin For Starter Switch Allis Chalmers

    Clevis Pin For Starter Switch - Allis Chalmers

    Allis-Chalmers
    $0.75
    97245A215
    Clevis pin for starter switch use across the listed tractor models.Includes the stated dimensions and starter switch fitment note.Part Number: 97245A215FitsAllis Chalmers - B, C, CA, G, IB, RC, WC,...
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  • Allis-Chalmers Allis Chalmers B C CA Battery Box Powder Coated 70226026 226026

    Allis Chalmers B C CA Battery Box

    Allis-Chalmers
    $119.50
    AC-029D
    Powder-coated battery box for Allis Chalmers B, C, and CA tractors.Finished in Persian Orange #1 and made to the listed inside dimensions.Part Number: AC-029DFitsAllis Chalmers - B, C, CAReplaces /...
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  • Allis-Chalmers B C CA Choke Rod, a long metal rod with a loop at one end, used as a replacement part for tractor choke mechanisms.

    Allis-Chalmers B C CA Choke Rod

    Allis-Chalmers
    $24.75
    KI1056
    Choke Rod for Allis-Chalmers B, C, and CA tractors.Part Number: KI1056FitsAllis-Chalmers BAllis-Chalmers CAllis-Chalmers CANotesChoke rod comes primered.Replaces / Cross Reference70211318
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  • Allis-Chalmers Allis Chalmers B IB C CA RC Manifold Stud Set with Brass Nuts

    Allis-Chalmers B IB C CA RC Manifold Stud Set with Brass Nuts

    Allis-Chalmers
    $37.75
    B001
    Manifold stud set with brass nuts for Allis-Chalmers tractors.Part Number: B001FitsAllis-Chalmers BAllis-Chalmers IBAllis-Chalmers CAllis-Chalmers CAAllis-Chalmers RCSpecs4 pcs = 3/8-16 x 3-1/2"...
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  • Allis-Chalmers Gas Tank Sealer - 1 Quart Can - ACR2043, a silver can with a blue and white label featuring the product name and warning notice.

    Gas Tank Sealer - 1 Quart Can

    Allis-Chalmers
    $69.99
    ACR2043
    Gas tank sealer in a 1 quart can.Part Number: ACR2043FitsAllis-Chalmers - VariousCase - VariousCockshutt - VariousFord - VariousInternational - VariousJohn Deere - VariousMassey Ferguson -...
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  • Allis-Chalmers Radiator Shutter Crank Assembly Kit Allis Chalmers B C CA IB WC WF WD WD45

    Allis-Chalmers Radiator Shutter Crank Assembly Kit

    Allis-Chalmers
    $79.75
    KI1099CRS
    Radiator shutter crank handle assembly kit for Allis-Chalmers tractors and AC power units.Part Number: KI1099CRSFitsAllis-Chalmers BAllis-Chalmers CAllis-Chalmers CAAllis-Chalmers IBServiceable for...
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  • Allis-Chalmers Rear Crankshaft Main Seal Allis Chalmers B IB C CA B125 70225805 225805

    Rear Crankshaft Main Seal for Allis-Chalmers B, IB, C, CA, RC

    Allis-Chalmers
    $15.75
    70225805
    Rear crankshaft main seal for select Allis-Chalmers tractors and AC equipment. Original felt style seal with the listed measurements.Part Number: 70225805FitsAllis Chalmers - B, IB, C, CA, RC (using...
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  • Allis-Chalmers Belt Pulley Shaft Seal | Allis Chalmers B IB C CA D10 D12 | 70225450

    Allis-Chalmers Belt Pulley Shaft Seal for B IB C CA D10 D12

    Allis-Chalmers
    $19.95
    70225450
    Part Number: 70225450Allis-Chalmers Belt Pulley Shaft SealBelt pulley shaft seal for listed Allis-Chalmers tractor models. Measures 1-3/8" ID.FitsAllis-Chalmers BAllis-Chalmers IBAllis-Chalmers...
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  • AGCO Allis Chalmers B IB C CA Oil Pump Gasket Seal, product image showing a tan-colored gasket with multiple holes for fitting and sealing the oil pump.

    Allis Chalmers B IB C CA Oil Pump Gasket Seal 70207840

    AGCO
    $5.50
    70207840
    Allis Chalmers oil pump gasket seal for B, IB, C, and CA models.Part Number: 70207840FitsAllis Chalmers BAllis Chalmers IBAllis Chalmers CAllis Chalmers CAReplaces / Cross Reference70207840207840
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  • Allis-Chalmers Allis Chalmers Front Main Crankshaft Seal B IB C CA WC WD WD45 WF 70224929 224929 2.004 OD

    Allis-Chalmers Front Crankshaft Seal 70224929

    Allis-Chalmers
    $12.00
    70224929
    Part Number: 70224929 Overview Front crankshaft oil seal for the listed Allis-Chalmers tractor, crawler, backhoe and industrial applications. This seal measures 2.004 in. outside diameter, 1.500 in...
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  • Allis-Chalmers Magneto Cap End Terminal, gold-colored electrical component for magnetos.

    Allis-Chalmers Magneto Cap End Terminal - 819

    Allis-Chalmers
    $0.75
    819
    Magneto cap end terminal for Allis-Chalmers applications. Identified by part number 819.Part Number: 819SpecsMagneto cap end terminalNotesCheck terminal style and cap application before ordering...
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