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Thread: Confused on VIN numbers

  1. #1

    Default Confused on VIN numbers

    In an earlier post someone stated that triumph never put vin numbers on the downtube. Can someone please clarify this for me? I picked up a 1972 triumph and need to ID the frame and engine numbers. It's a mismatched mutt. Frame- T140VAH 24XXX and engine- TR6C EE 20XXX. Can someone tell me what I have here? Is there a website for Triumph ID's? Thanks
    Last edited by hawghd1; 12-15-2012 at 09:07 AM.

  2. #2
    Join Date
    Aug 2004
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    Beautiful Northern New Mexico
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    Triumph ALWAYS stamped their frames. If you heard otherwise you were misinformed. And the engine and frame numbers originally matched with the exception of the engine having a model number on earlier units. On your '72 they should be the same. There are lots of places for Triumph ID info on the web. Just google them like I just did!
    The T140V means the frame is for a 750 Bonneville twin with 5 speed, your engine is a Tr6 650 4 speed.
    Here is a basic one to help you.
    http://www.sfvintagecycle.com/1/post...-decoder1.html
    Robbie Knight Amca #2736

  3. #3
    Join Date
    Nov 2001
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    Cape May,NJ
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    Dear hawghd1
    According to all my books Your frame is for a 750 5 speed made A for Jan. H for 1973. The engine is a TR6 650 with high pipes Made E for May E for 1971. Hope this helps you out.
    Cass
    Senior Field Judge for Brits
    AMCA #10592

  4. #4
    Join Date
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    England
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    Dear All, if you think you've got a matching numbers bike, the British VMCC has the build records for most British bikes. They are at www.vmcc.net. For a fee you can get a certificate showing the entry for your bike in the build records, with frame and engine numbers plus accessories etc. as dispatched from the factory.

  5. #5
    Join Date
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    This may be some help I.D.ing what you have.

    T140DBA= T140=(750cc) (D=Bonneville) (B=Febuary) (A=1979)

    ## MODEL VERSION ##
    A US MKT - ROAD (1960)
    B US MKT - COMPETITION (1960)
    R US MKT - ROAD (SOME YRS UK)
    RT US MKT - ONLY 750 MADE (1970)
    C US MKT - COMPETITION
    V FIVE SPEED GEARBOX
    E CONFORMS TO US ENVIRON. REGS.
    ES ELECTRIC START
    D BONNEVILLE SPECIAL (1979-1980)
    TSS EIGHT VALVE ENGINE
    TSX US STYLE CUSTOM
    LE LIMITED EDITION ROYAL (1982)
    AV ANTI VIBRATION (POLICE FRAME)

    PREFIX LETTERS SUFFIX LETTERS
    ## MONTH ##
    A JANUARY
    B FEBUARY
    C MARCH
    D APRIL
    E MAY
    G JUNE
    H JULY
    J AUGUST
    K SEPTEMBER
    N OCTOBER
    P NOVEMBER
    X DECEMBER

    ## YEAR ##
    C 1969
    D 1970
    E 1971
    G 1972
    H 1973
    J 1974
    K 1975
    N 1976
    P 1977
    X 1978
    A 1979
    B 1980
    KDA 1981
    EDA 1982
    BEA 1983
    ## MONTH YEAR SERIAL # VERSION
    X A 123456 E
    Meriden Bonneville
    SERIAL NUMBERS
    T120 650cc 1958 - 1972
    T140 750cc 1973 - 1983
    ------------
    Steve
    AMCA #7300

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