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Allis Chalmers B Tractor Parts

Allis-Chalmers B Tractor Parts

About the Allis-Chalmers B

Allis-Chalmers designed the Model B for smaller farms that needed an affordable, useful tractor without the size of a full-scale machine. Introduced in 1937, the B was light and narrow, with an arched front axle and high clearance that made it useful around one-row crops, truck farms, and nurseries.

The Model B was also notable for being sold with pneumatic tires rather than an optional steel-wheel setup. Production continued through 1957.

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, between the carburetor and fuel filter.

The table below uses one beginning tractor serial number for each Model B year:

1937-1943
Model B year Beginning serial number
1937 1
1938 97
1939 11,800
1940 33,502
1941 49,721
1942 56,782
1943 64,501
1944-1950
Model B year Beginning serial number
1944 65,502
1945 70,210
1946 72,265
1947 73,370
1948 80,556
1949 92,295
1950 102,393
1951-1957
Model B year Beginning serial number
1951 114,527
1952 118,674
1953 122,310
1954 124,201
1955 124,711
1956 126,497
1957 127,186

Total production: 120,783 Model B tractors.

The final Model B serial number was 127,461.

Allis-Chalmers B Paint Reference

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

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

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

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  • Wire Mini Alternator with Pulley 35 Amp, showing a compact automotive alternator with attached pulley and electrical connector on a brown background.

    1 Wire Mini Alternator with Pulley 35 Amp (Display)

    $159.50
    466
    1 wire mini alternator with pulley, 35 amp. Used to convert 6 volt systems to 12 volt systems on negative ground systems only. Preferred for tractors requiring a smaller diameter alternator for...
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  • Wire Mini Alternator with Pulley 35 Amp, compact metal automotive alternator with pulley and wiring connector, displayed on a plain surface.

    1 Wire Mini Alternator with Pulley 35 Amp (Display)

    $159.50
    465
    1 wire mini alternator with pulley, 35 amp. Used to convert 6 volt systems to 12 volt systems on negative ground systems only. Preferred for tractors requiring a smaller diameter alternator for...
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  • 105 Amp One Wire Alternator with Pulley for 6V to 12V Conversion, shiny metallic alternator with a pulley and an orange display tag attached.

    105 Amp One Wire Alternator with Pulley for 6V to 12V Conversion

    $103.75
    464
    105 amp one wire alternator with pulley, used for converting 6 volt to 12 volt systems. Built-in regulator and 1 wire hook up for 12 volt negative ground systems. Part Number: AB-418D Fits Allis...
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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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  • 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)

    $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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  • 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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  • 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)

    $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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  • 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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  • 63 Amp One Wire Alternator with Pulley for 6V to 12V Conversion, automotive electrical part displayed on a cardboard surface.

    63 Amp One Wire Alternator with Pulley for 6V to 12V Conversion (Display)

    $103.75
    462
    63 amp one wire alternator with pulley, used for converting 6 volt to 12 volt systems. Built-in regulator and 1 wire hook up for 12 volt negative ground systems. Part Number: AB-418D Fits Allis...
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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)

    $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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  • 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)

    $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 C Bottom Seat Cushion Orange (Display), orange cushioned seat with padding inside, in transparent plastic packaging, on a cardboard surface.

    Allis Chalmers B C Bottom Seat Cushion Orange (Display)

    $90.25
    642
    Bottom seat cushion for select Allis Chalmers tractors. Orange vinyl on wood construction with the listed dimensions. Part Number: DJS0860ORG Fits Allis Chalmers B Allis Chalmers C Replaces / Cross...
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  • Allis Chalmers B C IB Rear Wheel Clamp Eccentric Style, display image showing a used, metallic wheel clamp with a circular hole, placed on a brown background with a white label reading '659 USED PARTS / DISPLAY'.

    Allis Chalmers B C IB Rear Wheel Clamp Eccentric Style (Display)

    $21.50
    659
    Allis Chalmers B, C, IB Rear Wheel Clamp Eccentric Style 4 of each used per tractor, sold individually. Part Number: AC-274D Fits B (sn 58401 and up) IB C Replaces / Cross...
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  • Allis Chalmers B C Seat Back Primered Metal (Display), orange primered metal seat back with four mounting holes.

    Allis Chalmers B C Seat Back Primered Metal (Display)

    $33.50
    442
    Primered metal seat back for Allis Chalmers B and C tractors. Part Number: AC-116D Fits Allis Chalmers B Allis Chalmers C Replaces / Cross Reference 208664 70208664 Specs Metal Comes...
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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)

    $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 B IB C CA RC Muffler, display view of a cylindrical metal muffler with attached pipes and a label, used for vintage tractor exhaust system.

    Allis Chalmers B IB C CA RC Muffler (Display)

    $38.75
    477
    Muffler for Allis Chalmers B, IB, C, CA, and RC tractors. Part Number: ACR1047 Fits Allis Chalmers: B, IB, C, CA, RC (1938-1957) Replaces / Cross Reference 227240 70227240 Specs Inlet length =...
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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)

    $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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  • Allis Chalmers B, C Seat Back Spring Support (Display), orange metal seat back spring support for tractor seats

    Allis Chalmers B, C Seat Back Spring Support (Display)

    $39.95
    447
    Seat back spring support for Allis Chalmers B and C. Spring steel construction. Fits DJS seat back AC-116D. Sold individually; 2 used per tractor. Part Number: AC-175D Fits Allis Chalmers: B, C Fits...
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