TRW
Military 500cc Side-Valve Twins
| YEAR |
Engine
Numbers |
YEAR |
Engine
Numbers |
|
1950
|
14401N-14459N |
1958
|
27128NA
- 27175NA |
|
1951
|
6044NA
- 1432ONA |
1959 |
27176NA
- 27346NA |
|
1952
|
22001NA
- 22838NA |
1960 |
27347NA
- 27645NA |
|
1953
|
22839NA
- 23273NA |
1961 |
27646NA
- 28185NA |
|
1954
|
23274NA
- 23322NA |
1962 |
28186NA
- 28464NA |
|
1955
|
23323NA
- 23597NA |
1963 |
28465NA
- 28827NA |
|
1956
|
23598NA
- 25447NA |
1964 |
28828NA
- 29605NA |
|
1957
|
25448NA
- 27127MA |
|
|
1950 to Current (engine and frame numbers match)
| DATE |
T15/20 |
Unit
350/500 |
Pre-unit
500/650 |
|
1950
|
|
|
1001N
to 1616ON
|
|
1951
|
|
|
101NA
to 15808NA
|
|
1952
|
|
|
15809NA
to 25000NA (then) 25000 to 32303 (no suffix)
|
|
1953
|
|
|
32304
to 44821 (no suffix)
|
|
1954
|
101
to 8517
|
|
44822
to 56699 ( no suffix)
|
|
1955
|
8518
to 17388
|
|
56700
to 70929 (no suffix)
|
|
1956
|
17389
to 26275
|
|
70930
to 82797 (then)0101 to 0944
|
|
1957
|
26276
to 35846
|
H101
to H760
|
0945
to 011165
(first year for 500 unit construction)
|
|
1958
|
35847
to 45311
|
H761
to H5484
|
011166
to 020075
|
|
1959
|
45312
to 59359
|
H5485
to HI 1511
|
020076
to 029633
|
|
1960
|
59360
to 69516
|
H11512
to H18611
|
029634
to 030424
(first year for twin down tube frame)
|
|
1960
|
|
|
(then)
D101 to D7726
|
|
1961
|
69517
to 81889
|
H18612
to H25251
|
D7727
to D15788
|
|
1962
|
81890
to 88346
|
H25252
to H27932
|
D15789
to D20308
|
|
1963
|
88347
to 94599
|
H27933
to H32464
|
DU101
to DU5824
(first year for 650 unit construction)
|
|
1964
|
94600
to 99719
|
H32465
to H35986
|
DU5825
to DU13374
|
|
1965
|
99720
onwards
|
H35987
to H40527
|
DU13375
to DU24874
|
|
1966
|
101
onwards
|
H40528
to H49832
|
DU24875
to DU44393
|
|
1967
|
|
H49833
to H57082
|
DU44394
to DU66245
|
|
1968
|
|
H57083
to H65572
|
DU66246
to DU85903
|
|
1969
|
|
H65573
to H67330
|
DU85904
to DU90282
|
|
1969-1/2
|
Mid
'69 number change
|
(then)
XC06297to HC24527
|
(then)
NC00100 to HC24346
See explanation below
|
|
1970
|
|
HD27850
to KD60280
|
JD24848
to ND60540
|
|
1971
|
|
KE00001
to HE25250
|
NE01436
to HE30869
(first year for oil in frame)
|
|
1972
|
|
JG32303
to GG59646
|
|
|
1973
|
|
JH15597
to DH31460
|
JHI5101
to GH36466
|
|
1974
|
|
HJ56408
to JJ58103
|
JJ58014
to NJ60061
|
|
1975
|
|
|
DK61000
to GK62248
|
|
1976
|
|
|
HN62501
to GN72283
|
|
1977
|
|
|
GP73000
to JP84931
|
|
1978
|
|
|
HX00100
to JXI0747
|
|
1979
|
|
|
HA11001
to PA24608
|
|
1979
|
XB24609
to 24790 XB date code used in error, should be XA
|
XB24609
to XB24790
|
|
1980
|
|
|
PB25001
to KB275
|
|
1981
|
|
|
KDA28001
to DDA29427
|
|
1982
|
|
|
EDA30001
to BDA31693
|
|
1983
|
|
|
BEA33001
to AEA34389
|
|
|
|
|
|
|
L. F. Harris
models, which were never (legally) exported to the USA. |
|
1985
|
|
|
FN000002
to FN000191
|
|
1986
|
|
|
GN000192
to GN000788
|
|
1987
|
|
|
HN000789
to HN001176
|
|
1988
|
|
|
JN001177
to JN001258
|
NOTE: From 031701 (zero
prefix added) October 10,1981 thru 032213 January 1, 1983, motorcycles for
U.S. market were prefixed
'CM' with no date code.
This was done to overcome some export
restrictions which dating could have caused problems.
Triumph Alpha-Numeric prefix numbering system started in 1969
A Triumph T140V with a motor number of T140V GP73000 would have been
manufactured in June 1976 (G) for the Model year 1977 (P).
|
A |
September |
C |
1969 |
|
B |
Feburary |
D |
1970 |
|
C |
March |
E |
1971 |
|
D |
April |
G |
1972 |
|
E |
May |
H |
1973 |
|
G |
June |
J |
1974 |
|
H |
July |
K |
1975 |
|
J |
August |
N |
1976 |
|
K |
September |
P |
1977 |
|
N |
October |
X |
1978 |
|
P |
November |
A |
1979 |
|
X |
December |
B |
1980 |
Thanks to Dave Gaylin and Lindsay
Brooke for printing the above information in their book "Triumph in
America", and for their permission to allow us to use this data on the TIOC
web site.
