SERIAL NUMBER GUIDE 2017-11-12T20:15:20+00:00

Serial Number Guide

Triumph

500cc & 650cc Pre-Unit Engines

1950100N and up
1951101NA thru 15808NA
195215809NA thru 25000NA
Then 25000 thru 32302
195332303 thru 44134
195444135 thru 56699
195556700 thru 70929
195670930 thru 82799
Then 0100 thru 0944
19570945 thru 011115
1958011116 thru 020075
1959020076 thru 029363
1960029364 thru 030424
Then D101 thru D7726
1961D7727 thru D15788
1962D15789 and on

500cc Unit Engines 

1957H101 thru H760
1958H761 thru H5484
1959H5485 thru H11511
1960H11512 thru H18611
1961H18612 thru H25251
1962H25252 thru H29732
1963H29733 thru H32464
1964H32465 thru H35986
1965H35987 thru H40527
1966H40528 thru H49832
1967H49833 thru H57082
1968H57083 thru H65572
1969H65573 thru H67331
1970KD27850 and up

650cc Unit Engines

1963DU101 thru DU5824
1964DU5825 thru DU13374
1965DU13375 thru DU24874
1966DU24875 thru DU44393
1967DU44394 thru DU66245
1968DU66246 thru DU85903
1969DU85904 thru DU90282

Triumph 650cc & 750cc Twins and 750 Triples

Beginning in 1969, Triumph started using a 2-letter prefix for frame and engine numbers. The first letter indicates the month of manufacture. The second indicates the year of manufacture.

MonthYear
JanuaryA1969C
FebruaryB1970D
MarchC1971E
AprilD1972G
MayE1973H
JuneG1974J
JulyH1975K
AugustJ1976N
SeptemberK1977P
OctoberN1978X
NovemberP1979A
DecemberX1980B

1981-83 Triumph Engine Numbers

1981KDA
1982EDA
1983BEA

BSA

250cc B25, C25

1967From C25-101
1968From B25-101
1969From KC06301-B25S
1970From JD00101-B25S
1971From JE00101-B25SS

441cc B44 Victor Special 

1966B44E-101
1967B44EA-101
1968B44B-101
1969PC07723-B44VS
1970HD00101-B44VS

441cc B44 Shooting Star 

1967B44R-101
1968B44B-101
1969PC07793-B44SS
1970JC00101-B44SS

500cc B50 All Models 

1971JE00101
1972JG00101
1973Not Published

500cc & 650cc A50 & A65 

1962-65Not Published
1966A50/A65 * 101
1967A50/A65 * A101
1968A50/A65 * B101
1969A50/A65 * C101
1970A50/A65 * HD00101
1971A65 * JE00101
1972A65 * JG00101
* Insert model letter of motorcycle here.
  H = Hornet
  L = Lightning
  F = Firebird
  S = Spitfire
  T = Thunderbolt

750cc A75 Triples

1969-70A75R-101
1971HD00101-A75R
1972JG00101-A75R
1973Not Published

Norton

Norton Year Codes for Models Between 1946 and 1960

CodeYear
A1946
B1947
C1948
D1949
E1950
F1951
G1952
H1953
J1954
K1955
L1956
M1957
N1958
P1959
R1960

Norton Model Codes

CodeModel
216H
318
3T500T
4ES2
619R
7Big 4
816H or Big Four Plunger
919S
10International 40
10MManx 40
10M2Manx 40 Featherbed
11International 30
11MManx 30
11M2Manx 30 Featherbed
12Model 7
12288
1350
1499
1577 & Nomad
16Nomad
17Jubilee
18All 650cc Twins
19Navigator
20Atlas
20M3Commando (Distributor)
20M3SCommando (Camshaft Pionts)
50AMC 50
ESElectra
ES2AMC ES2
DDe-Luxe Twin
SSSports Special Twin
QQuietening Ramp Cams

Norton Serial Numbers

YearNumber
19451001
19462131
19477756
194813792
194920701
195027100
195135560
195242700
195348900
195455350
195560700
195666600
195771360
195877400
195980488
196087038
196194500
1962101060
1963105000
1964108000
1965111650
1966115870
1967119760
1968124300
1969130000
1970134700
1971141700
1972200001
1973212278
1973300000 (850)
1974307311
1975325000 (MK3)
125001 (Frame)

Norton 750 Twins Numbers

750cc Twins
1963From 104001
1964From 108000
1965-68From 114870
1969-70From 138973
1971From 142151
1972From 200004
1973-74From 301000
1975From 330000