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To enable you to purchase the correct parts for your machine you will need to know the Part reference numbers. These are found in the Parts catalogue for your machine.
If you are unsure of the year of the machine, below are the Triumph Frame & Triumph engine numbers to enable you to date it and thereby purchase the correct parts catalogue.
To purchase the Parts catalogue for your machine go to our eBay Parts catalogues shop.
The year and model were used as a prefix to the engine number
From 1937 to 1939 the final digit ( 7, 8 or 9 ) was used.
From 1946 to 1949 the final two figures ( 46, 47, 48 or 49.)
The model numbers were T or 5T for the Speed Twin, T100 for Tiger 100, 3T for 350 twin & TR5 for Trophy.
Typical numbers were thus:
Pre-war frames ( 1937 / 39 ) used the prefix TH for the 500cc models ( 5T & T90 ) and TF for the Tiger 100.
Triumph Engine numbers commenced at:
Engine numbers had a prefix indicating the model type along the lines above such as 3T, 5T, 6T, T100, T110, 3TA, 5TA etc. This was followed by a number from the list below.
YEAR - Pre-Unit 500 & 650cc
Frame number prefix :
Note: The triumph engine number is located on the left side of the engine immediately below the cylinder barrel flange. The number is stamped onto the raised pad.
The triumph frame number is stamped on the left side of the frame, on the front engine mounting lug.
The first letter indicates the month of manufacture as follows:-
The second letter indicates the season year of manufacture as follows :-
The third section is a numerical block of five figures which commence with engine number 00100.
The fourth section indicates the model.
Example: NC00100T120R - N=Month C=Year, Number, T120R=Model.
Frame number prefix :
Note: The triumph engine number is located on the left side of the engine immediately below the cylinder barrel flange. The number is stamped onto the raised pad.
The triumph frame number is stamped on the left side of the frame, on the front engine mounting lug.
The first letter indicates the month of manufacture as follows:-
The second letter indicates the season year of manufacture as follows :-
The third section is a numerical block of five figures which commence with engine number 00100.
The fourth section indicates the model.
Example: NC00100T120R - N=Month C=Year, Number, T120R=Model.
Frame number prefix :
