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    Allis Chalmers Serial Number Lookup

    Use the tractor serial on the model-specific plate or stamping. WD and WD45 share a number sequence, so verify the model before choosing a table. English-built B tractors have their own EB serials.

    No serial handy? Leave it blank to see the build years, where the plate is and every manual for your model. Add the serial to narrow it to your exact year and manual.

    B

    Allis Chalmers · Published production years 1938-1957

    Serial plate: Top of the transmission case, by the shift lever. English-built tractors have an EB serial

    B year table
    YearFirst serial
    193897
    193911,800
    194033,502
    194149,721
    194256,782
    194364,501
    194465,502
    194570,210
    194672,265
    194773,370
    194880,556
    194992,295
    1950102,393
    1951114,527
    1952118,674
    1953122,310
    1954124,201
    1955124,711
    1956126,497
    1957127,186

    Two published sources broadly agree on these year breaks.

    Manuals by model

    View manual editions and fit ranges (9)

    C

    Allis Chalmers · Published production years 1940-1949

    Serial plate: Top of the transmission case, behind the shift lever

    C year table
    YearFirst serial
    19401
    1941112
    194212,389
    194318,782
    194423,908
    194530,695
    194636,378
    194739,168
    194851,515
    194968,281

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (8)

    CA

    Allis Chalmers · Published production years 1950-1958

    Serial plate: Top of the transmission, by the shift lever

    CA year table
    YearFirst serial
    195014
    1951322
    195210,539
    195322,181
    195431,424
    195532,907
    195637,203
    195738,618
    195838,977

    Two published sources broadly agree on these year breaks.

    Manuals by model

    View manual editions and fit ranges (8)

    G

    Allis Chalmers · Published production years 1948-1955

    Serial plate: Top of the transmission case, behind the shift lever

    G year table
    YearFirst serial
    19486
    194910,961
    195023,180
    195124,006
    195225,269
    195326,497
    195428,036
    195529,036

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (12)

    RC

    Allis Chalmers · Published production years 1939-1941

    Serial plate: Top of the transmission case, behind the shift lever

    RC year table
    YearFirst serial
    19394
    19404,392
    19415,417

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (3)

    U

    Allis Chalmers · Published production years 1929-1944

    Serial plate: Top of the transmission case, behind the shift lever

    U year table
    YearFirst serial
    19291
    19301,751
    19313,676
    19325,525
    19337,405
    19348,896
    193510,596
    193612,086
    193713,576
    193814,855
    193915,587
    194016,078
    194116,722
    194217,137
    194317,470
    194417,801

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (5)

    UC

    Allis Chalmers · Published production years 1930-1941

    Serial plate: Top of the transmission case, behind the shift lever

    UC year table
    YearFirst serial
    19301
    1931336
    1932826
    19331,268
    19383,757
    19394,547
    19404,770
    19414,972

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (6)

    WC

    Allis Chalmers · Published production years 1933-1948

    Serial plate: Rear of the tractor, stamped into the differential housing

    WC year table
    YearFirst serial
    19331
    193429
    19353,127
    193613,870
    193731,784
    193860,790
    193975,216
    194091,534
    1941103,517
    1942114,534
    1943123,171
    1944127,642
    1945134,624
    1946148,091
    1947152,845
    1948170,174

    Two published sources broadly agree on these year breaks.

    Manuals by model

    View manual editions and fit ranges (6)

    WF

    Allis Chalmers · Published production years 1937-1951

    Serial plate: Rear of the differential housing above the operator platform (WD: top of the left differential brake housing)

    WF year table
    YearFirst serial
    19374
    1938289
    19391,336
    19401,892
    19412,300
    19422,704
    19443,004
    19453,195
    19463,510
    19473,748
    19484,111
    19495,500
    19507,318
    19518,316

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (4)

    WD

    Allis Chalmers · Published production years 1948-1953

    Serial plate: Stamped into the rear of the transmission case, left side

    WD year table
    YearFirst serial
    19487
    19499,250
    195035,445
    195172,328
    1952105,182
    1953131,243

    Two published sources broadly agree on these year breaks.

    Manuals by model

    View manual editions and fit ranges (8)

    WD45

    Allis Chalmers · Published production years 1953-1957

    Serial plate: Left brake housing

    WD45 year table
    YearFirst serial
    1953146,607
    1954160,386
    1955190,993
    1956217,992
    1957230,295

    Two published sources broadly agree on these year breaks.

    View manual editions and fit ranges (10)

    D10

    Allis Chalmers · Published production years 1959-1967

    Serial plate: Front of the torque housing (flange or left side)

    D10 year table
    YearFirst serial
    19591,001
    19601,950
    19612,801
    19624,511
    19636,801
    19647,675
    19659,204
    19669,486
    19679,795

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (4)

    D12

    Allis Chalmers · Published production years 1959-1967

    Serial plate: Front of the torque housing (flange or left side)

    D12 year table
    YearFirst serial
    19591,001
    19601,950
    19612,801
    19623,638
    19635,501
    19646,012
    19659,192
    19669,508
    19679,830

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (3)

    D14

    Allis Chalmers · Published production years 1957-1960

    Serial plate: Front of the torque housing (flange or left side)

    D14 year table
    YearFirst serial
    19571,003
    19589,400
    195914,900
    196021,800

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (11)

    D15

    Allis Chalmers · Published production years 1960-1962

    Serial plate: Front of the torque housing (flange or left side)

    D15 year table
    YearFirst serial
    19601,001
    19611,900
    19626,470
    196313,001
    196416,928
    196519,681
    196623,753

    Two published sources broadly agree on these year breaks.

    Manuals by model

    View manual editions and fit ranges (7)

    D17

    Allis Chalmers · Published production years 1957-1967

    Serial plate: Left front of the torque housing

    D17 year table
    YearFirst serial
    19571,001
    19584,300
    195916,500
    196028,200
    196133,100
    196238,070
    196365,001
    196470,611
    196577,090
    196680,533
    196786,061

    Two published sources broadly agree on these year breaks.

    Manuals by model

    View manual editions and fit ranges (13)

    D19

    Allis Chalmers · Published production years 1961-1963

    Serial plate: Front of the torque housing (flange or left side)

    D19 year table
    YearFirst serial
    19611,001
    19621,250
    196312,001

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (7)

    D21

    Allis Chalmers · Published production years 1963-1969

    Serial plate: Front of the torque housing (flange or left side)

    D21 year table
    YearFirst serial
    19631,001
    19641,417
    19652,079
    19662,408
    19672,863
    19683,777
    19694,498

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (5)

    170

    Allis Chalmers · Published production years 1968-1973

    Serial plate: Front of the torque housing (flange or left side)

    170 year table
    YearFirst serial
    19682,721
    19695,374
    19706,369
    19716,988
    19727,797
    19738,821

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (6)

    175

    Allis Chalmers · Published production years 1970-1975

    Serial plate: Front of the torque housing (flange or left side)

    175 year table
    YearFirst serial
    19701,001
    19711,477
    19721,624
    19731,740
    19742,153
    19753,255

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (5)

    180

    Allis Chalmers · Published production years 1968-1973

    Serial plate: Front of the torque housing (flange or left side)

    180 year table
    YearFirst serial
    19682,682
    19696,094
    19709,235
    197110,561
    197211,729
    197312,447

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (8)

    185

    Allis Chalmers · Published production years 1970-1975

    Serial plate: Front of the torque housing (flange or left side)

    185 year table
    YearFirst serial
    19701,001
    19711,952
    19722,935
    19733,763
    19744,961
    19756,542

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (5)

    190

    Allis Chalmers · Published production years 1964-1972

    Serial plate: Left side, stamped into the flange where the engine and transmission meet

    190 year table
    YearFirst serial
    19641,001
    19652,485
    19668,219
    196713,273
    196819,262
    196923,234
    197025,901
    197129,136
    197231,057
    197331,118

    Two published sources broadly agree on these year breaks.

    Manuals by model

    View manual editions and fit ranges (12)

    200

    Allis Chalmers · Published production years 1972-1975

    Serial plate: Top of the transmission case, behind the shift lever

    200 year table
    YearFirst serial
    19721,001
    19733,344
    19746,294
    19759,250

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (8)

    210

    Allis Chalmers · Published production years 1970-1973

    Serial plate: Top of the transmission case, behind the shift lever

    210 year table
    YearFirst serial
    19701,001
    19711,107
    19722,082
    19732,469

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (7)

    220

    Allis Chalmers · Published production years 1970-1973

    Serial plate: Top of the transmission case, behind the shift lever

    220 year table
    YearFirst serial
    19701,938
    19712,451
    19722,626
    19732,860

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (7)

    7030

    Allis Chalmers · Published production years 1973-1974

    Serial plate: Above the PTO guard (7000 on the right side of the differential housing)

    7030 year table
    YearFirst serial
    19731,001
    19742,596

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (8)

    7050

    Allis Chalmers · Published production years 1973-1974

    Serial plate: Above the PTO guard (7000 on the right side of the differential housing)

    7050 year table
    YearFirst serial
    19731,001
    19741,688

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (4)

    HD-5

    Allis Chalmers · Published production years 1946-1951

    Serial plate: Upper right corner at the rear of the transmission case

    HD-5 year table
    YearFirst serial
    19461
    19477
    19481,358
    19494,316
    19507,499
    195111,071

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (3)

    HD-7

    Allis Chalmers · Published production years 1940-1950

    Serial plate: Upper right corner at the rear of the transmission case

    HD-7 year table
    YearFirst serial
    19403
    1941503
    19421,137
    19435,403
    19445,753
    19458,949
    194612,382
    194713,236
    194815,117
    194916,769
    195018,094

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (3)

    HD-10

    Allis Chalmers · Published production years 1940-1950

    Serial plate: Upper right corner at the rear of the transmission case

    HD-10 year table
    YearFirst serial
    19402
    1941642
    19421,446
    19432,856
    19443,652
    19454,897
    19466,103
    19476,576
    19487,799
    19498,710
    19509,634

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (3)

    HD-3

    Allis Chalmers · Published production years 1960-1968

    Serial plate: Upper right corner at the rear of the transmission case

    HD-3 year table
    YearFirst serial
    19601,001
    19611,250
    19623,199
    19636,001
    19668,856
    19679,483
    19689,700

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    View manual editions and fit ranges (8)

    HD-4

    Allis Chalmers · Published production years 1966-1969

    Serial plate: Upper right corner at the rear of the transmission case

    HD-4 year table
    YearFirst serial
    19661,244
    19672,690
    19683,001
    19693,906

    One published table. Treat the year as approximate.

    Single source (Yesterday's Tractors).

    Manuals by model

    View manual editions and fit ranges (5)

    Allis Chalmers serial number questions

    Where is the Allis Chalmers serial plate?
    Check the transmission case near the gear shift, the torque housing, or the left brake housing on WD and WD45 tractors.
    How do I read a Allis Chalmers serial number?
    Use the tractor serial on the model-specific plate or stamping. WD and WD45 share a number sequence, so verify the model before choosing a table. English-built B tractors have their own EB serials.
    How do I find the year of my Allis Chalmers tractor?
    Find the table for the exact model and series. Read down to the latest year whose starting serial is at or below yours. Where published lists disagree, check both tables.
    Which Allis Chalmers manual fits my machine?
    Start with the exact model and series, then compare your serial or build year to the range listed for each edition. Check any fuel, transmission or configuration details in the title.

    Sources

    Year and plate references are listed below. Manual coverage comes from the edition titles and serial ranges in The Manual Store catalog.

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