Bonneville VIN's

[J William]

I've got two 1979 Bonneville 750 Specials. Based on the VIN's can that be correct?

#1 ~ T140DBAxxxxx
#2 ~ T140DDAxxxxx

I've tried several Triumph sites to no avail. Any information would be appreciated. Thanks !!

[Ohio-Rider]

Sounds right to me. The numbers you posted indicate that both are 1979 Bonneville’s and that one (B) was produced in Febuary and the other (D) was produced in April. Hope this helps.

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

[J William]

Thanks for all the details, I appreciate it !!