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Allis Chalmers D21 Tractor Parts

About the Allis-Chalmers D21

The D21 was introduced in 1963 as the largest tractor in the D Series. It used a large six-cylinder diesel, power steering, an independent 1,000-rpm PTO, and the size and weight needed for large field work.

The D21 was built from 1963 through 1969 in Series I and Series II versions. The serial number table shows the change from Series I to Series II during the 1965 production run.

Serial Number Reference

Serial number locations: The tractor serial number is stamped on the left side, on the front flange of the torque housing near the starter mounting. The engine serial number is stamped on a plate at the upper rear of the engine block on the left-hand side.

The table below shows the beginning tractor serial number for each Model D21 year and series:

 

1963-1965
Model D21 year Beginning serial number
1963 - Series I 100
1964 - Series I 1,417
1965 - Series I 2,079
1965-1967
Model D21 year Beginning serial number
1965 - Series II 2,130
1966 - Series II 2,408
1967 - Series II 2,863
1968-1969
Model D21 year Beginning serial number
1968 - Series II 3,777
1969 - Series II 4,498

Total production: 2,409 Model D21 tractors.

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  • Allis Chalmers Bronze Seat Bushings Set 70227910 227910, display of ten used bronze bushings for heavy machinery.

    Allis Chalmers Bronze Seat Bushings Set 70227910 227910 (Display)

    $24.50
    682
    Set of 8 bronze seat bushings for Allis Chalmers tractors. Sold under part number 70227910. Part Number: 70227910 Fits Allis Chalmers D10 Allis Chalmers D12 Allis Chalmers D14 Allis Chalmers...
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  • Allis-Chalmers Upper Seat Spacer Pivot Bushing 70227915, display image of a blue cylindrical metal bushing with some rust and wear.

    Allis-Chalmers Upper Seat Spacer Pivot Bushing 70227915 (Display)

    $11.00
    681
    Upper seat spacer, pivot for shock absorber for Allis-Chalmers tractors. Sold individually; 2 per tractor. Part Number:...
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  • Grill Hood Locking Latch Kit for Allis-Chalmers D21, 160-210, display showing metal latch assembly with locking mechanism and small metal bracket on brown background

    Grill Hood Locking Latch Kit for Allis-Chalmers D21, 160-210 (Display)

    $15.50
    651
    Grill hood locking latch kit for listed Allis-Chalmers tractors. Includes latch and loop, with a built-in lock for added security. Part Number: 70243274LOCK Fits Allis Chalmers D21 Allis Chalmers...
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  • Hood Latch Snap Latch for Allis Chalmers D10 D12 D14 D15 D17 D19 D21, metallic hood latch snap fitting on brown background

    Hood Latch Snap Latch for Allis Chalmers D10 D12 D14 D15 D17 D19 D21 (Display)

    $9.50
    650
    Part Number: CH4000 Hood Latch Snap Latch Hood latch snap latch for select Allis Chalmers tractors, bale throwers, balers, and some Gleaner combines. Strike not included. Fits ALLIS CHALMERS - D10,...
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  • Allis Chalmers D10 D12 D14 D15 D17 D19 D21 Hood Latch, used display part for tractor hood latch replacement.

    Allis Chalmers D10 D12 D14 D15 D17 D19 D21 Hood Latch (Display)

    $9.50
    649
    Part Number: CH4009 Allis Chalmers Hood Latch Loop-style snap hood latch for the Allis Chalmers tractors and Gleaner combines listed below. Fits Allis Chalmers D10 Allis Chalmers D12 Allis Chalmers...
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  • Allis Chalmers Cream Steering Wheel, display model of vintage tractor steering wheel.

    Allis Chalmers Cream Steering Wheel (Display)

    $46.25
    648
    Cream steering wheel for listed Allis-Chalmers tractors and combines. Like original and made with all new material. Part Number: AC-137D Fits Allis Chalmers - ED40, D10, D12, D14 (sn 19001 and up),...
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  • Allis Chalmers Cream Steering Wheel, display model of a vintage white steering wheel with three spokes and a black central hub.

    Allis Chalmers Cream Steering Wheel (Display)

    $46.25
    647
    Cream steering wheel for listed Allis-Chalmers tractors and combines. Like original and made with all new material. Part Number: AC-137D Fits Allis Chalmers - ED40, D10, D12, D14 (sn 19001 and up),...
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  • Allis Chalmers Cream Steering Wheel, white vintage steering wheel for tractor display.

    Allis Chalmers Cream Steering Wheel (Display)

    $46.25
    646
    Cream steering wheel for listed Allis-Chalmers tractors and combines. Like original and made with all new material. Part Number: AC-137D Fits Allis Chalmers - ED40, D10, D12, D14 (sn 19001 and up),...
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  • Ammeter Amp Gauge (30-0-30) Display, round electrical ammeter gauge with black dial and silver bezel, measuring amperes in a vehicle or electrical system.

    Ammeter Amp Gauge (30-0-30) (Display)

    $15.75
    620
    Ammeter amp gauge with a 30-0-30 range, chrome bezel, and 2" diameter hole fitment. Fits the tractor models and applications listed below. Part Number: AB-109D Fits Allis Chalmers: D10, D12, D14,...
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  • Allis Chalmers Amp Gauge 60-0-60 70254407, display of a round amp gauge with a needle, black casing, and a white faceplate marked with ampere measurements.

    Allis Chalmers Amp Gauge 60-0-60 70254407 (Display)

    $35.50
    628
    Aftermarket 60-0-60 gauge made just like the original ones that came on the tractor when new. Made to give it that original look. Part Number: DJS70254407 Fits Allis Chalmers D10 Allis Chalmers...
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  • Allis-Chalmers Engine Oil Pressure Switch D21 180 185 190 190XT 190XT III 200 210 220, display image of a used engine oil pressure switch with metallic body, threaded end, and electrical contact.

    Allis-Chalmers Engine Oil Pressure Switch D21 180 185 190 190XT 190XT III 200 210 220 (Display)

    $16.00
    608
    Part Number: 74021445 Allis-Chalmers Engine Oil Pressure Switch Engine oil pressure switch for listed tractors and combines. Fits Allis Chalmers - D21, 180, 185, 190, 190XT, 190XT III, 200, 210,...
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  • Allis Chalmers Green Power Director Dash Oil Pressure Warning Light (Display), close-up of the used part on a cardboard background with label.

    Allis Chalmers Green Power Director Dash Oil Pressure Warning Light (Display)

    $31.50
    604
    Allis Chalmers - D14, D15, D17, D19, D21, 170, 175, 180, 185, 190, 190XT, 200, 210, 220 Part Number: 70240837-G Replaces / Cross Reference 70240837, 240837, 70240838, 240838 Notes Green Power...
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  • Allis Chalmers Red Power Director Dash Oil Pressure Warning Light (Display), a mechanical component with a red bulb and metallic base for monitoring oil pressure in power equipment.

    Allis Chalmers Red Power Director Dash Oil Pressure Warning Light (Display)

    $31.50
    603
    Allis Chalmers - D14, D15, D17, D19, D21, 170, 175, 180, 185, 190, 190XT, 200, 210, 220 Part Number: 70240837-R Replaces / Cross Reference 70240837, 240837, 70240838, 240838 Notes Red Power Director...
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  • Temperature Sending Unit for Allis-Chalmers D21, 170-7000 with display, metal sensor with threaded end, blue ring, and electrical connection

    Temperature Sending Unit for Allis-Chalmers D21, 170-7000 (Display)

    $15.75
    602
    Temperature Sending Unit for Allis Chalmers tractors. Part Number: 70241249 Fits D21, 170, 175, 180, 185, 190, 190XT, 190XT III, 200, 210, 220, 220 FWA, 7000 Replaces / Cross Reference 70241249,...
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  • Fuse Holder 20 Amp, display model with metal contacts and a black plastic casing for electrical connection.

    Fuse Holder 20 Amp (Display)

    $10.25
    601
    20 amp fuse holder for 3AG type fuses. Fits a 1/2" chassis hole and uses a nut for mounting. Part Number: AB-389D Fits Allis Chalmers: D10, D12, D14, D15, D17, D19, D21, 180, 185, 190, 190XT, 200,...
    Out of stock
  • Starter Solenoid 3 Post Saddle Mount 12 Volt, used electrical starter solenoid compact metal component with multiple connection ports on a brown surface.

    Starter Solenoid 3 Post Saddle Mount 12 Volt (Display)

    $25.00
    593
    3 post saddle mount starter solenoid for 12 volt systems only. Fits multiple Allis-Chalmers, Case, Cockshutt, International, John Deere, Massey Ferguson, Minneapolis Moline, Oliver, and White...
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  • 12-Volt Dash Light Assembly for Allis-Chalmers, display of used tractor dash light with wiring for vehicle dashboard

    12-Volt Dash Light Assembly for Allis-Chalmers (Display)

    $25.50
    592
    12-volt dash light assembly for Allis-Chalmers tractors. Chrome finish with a 0.658" socket diameter and 1" center-to-center mounting holes. Part Number: AC-273D Fits Allis-Chalmers...
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