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Allis Chalmers WD Tractor Parts

About the Allis-Chalmers WD

The WD brought Allis-Chalmers' two-clutch Power Control system to the row-crop tractor market when it was introduced in 1948. The foot clutch handled the main drive, while the hand-operated wet clutch let the PTO keep turning when the tractor slowed or stopped.

Built through 1953, the WD also introduced power-shifted rear wheels and used a four-speed transmission. The WD was followed by the higher-powered WD45.

Serial Number Reference

Serial number locations: The tractor serial number is stamped at the left brake cover or the left rear of the axle housing. The engine serial number is on the left-hand side of the engine near the carburetor.

The table below shows the beginning tractor serial number for each Model WD year:

 

1948-1949
Model WD year Beginning serial number
1948 7
1949 9,250
1950-1951
Model WD year Beginning serial number
1950 35,445
1951 72,328
1952-1953
Model WD year Beginning serial number
1952 105,182
1953 131,243

Total production: 146,125 Model WD tractors.

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  • Allis-Chalmers Key Switch Ignition Switch 70225310 with attached keys and wiring, used agricultural machinery part.

    Allis-Chalmers Key Switch Ignition Switch 70225310 (Display)

    $10.75
    581
    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...
  • Allis-Chalmers Oil Filter Tube Element Stand Pipe 70203899, display of a metal tube stand pipe on a brown background with a label underneath reading '637 USED PARTS / DISPLAY'.

    Allis-Chalmers Oil Filter Tube Element Stand Pipe 70203899 (Display)

    $15.75
    637
    Allis-Chalmers oil filter tube element stand pipe for the listed Allis-Chalmers and AC Misc. applications. Part Number: KI1189 Fits Allis Chalmers - G, B, C, CA, IB, RC, WC, WF, WD, WD45, D10, D12,...
  • 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...
  • 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"...
  • Allis-Chalmers Thermostat 180 Degrees, display of a used thermostat part.

    Allis-Chalmers Thermostat 180 Degrees (Display)

    $10.25
    509
    Thermostat 180 degrees for Allis-Chalmers D10, D12, WC, WD, and WF. Part Number: AB-1086D Fits Allis-Chalmers D10 Allis-Chalmers D12 Allis-Chalmers WC Allis-Chalmers WD Allis-Chalmers WF Avery...
  • Allis-Chalmers WD / WD45 Main Wiring Harness | ACR4766, Display of a new wiring harness inside a clear plastic bag with multiple colored wires.

    Allis-Chalmers WD / WD45 Main Wiring Harness | ACR4766 (Display)

    $74.50
    555
    Part Number: ACR4766 Allis-Chalmers WD / WD45 Main Wiring Harness Main wiring harness for Allis-Chalmers WD and WD45. Fits Allis-Chalmers WD Allis-Chalmers WD45 Replaces / Cross...
  • Allis-Chalmers WD WD45 WC Headlight Assembly 6 Volt, black round headlight with clear glass lens and black handlebar, used tractor light display

    Allis-Chalmers WD WD45 WC Headlight Assembly 6 Volt (Display)

    $46.25
    562
    Part Number: AC-150V6 Allis-Chalmers Headlight Assembly This 6 volt headlight assembly is for Allis-Chalmers WD, WD45, RC, WC, and WF tractors. It features a 4-3/4" diameter curved lens and is a bulb...
  • Brake Pin Puller Removal Tool for Allis-Chalmers WD, WD45, D17, display of the tool with two bolts and a metal insert on a brown surface.

    Brake Pin Puller Removal Tool for Allis-Chalmers WD, WD45, D17 (Display)

    $62.50
    523
    Brake Pin Puller Removal Tool for Allis-Chalmers WD, WD45, WD45 (diesel), and D17 (up to SN: 42000). Part Number: AC-3558D Fits Allis-Chalmers WD Allis-Chalmers WD45 Allis-Chalmers WD45...
  • 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,...
  • 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)

    $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:...
  • 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"...
  • 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,...
  • 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...
  • Hand Crank Holder Bracket for Allis Chalmers WC WF RC WD WD45, red metal display bracket with circular hole for securing a hand crank, used farm machinery part.

    Hand Crank Holder Bracket for Allis Chalmers WC WF RC WD WD45 (Display)

    $19.00
    549
    Hand crank holder bracket for Allis Chalmers WC, WF, RC, WD, and WD45. Part Number: AC-096D Fits Allis Chalmers: Rear clip: Styled WC, WF, RC - Rear clip or front clip: WD, WD45 Replaces / Cross...
  • Headlight Lens w/ Guide Name 4-3/4" (Display), transparent round car headlight lens with a textured surface for vehicle lighting.

    Headlight Lens w/ Guide Name 4-3/4" (Display)

    $12.50
    568
    Part Number: IH-352D Headlight Lens w/ Guide Name This 4-3/4" headlight lens has a "GUIDE" marking near the bottom of the lens and a dimpled outer surface. It is interchangeable with the original...
  • Headlight Reflector for Allis-Chalmers and Other Models, shiny chrome round reflector with mounting hole, displayed on a brown background.

    Headlight Reflector for Allis-Chalmers and Other Models (Display)

    $11.75
    569
    Part Number: AB-320D Fits Allis Chalmers - B, C, CA, D10, D12, D14, D15 (up to sn 9001), RC, WC, WD, WD45, WF Case - VA, VAC, VAH (all up to sn 5400000) Cockshutt - 20, 30, 40, 50, 540, 550, 560,...