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Technical Info > Part Numbers 

General: We use a plain dash - to seperate part number fields. If you are having no result with the search engine, try using just the last four numbers (max) or just the numbers after an alphabetic character. Note that in our price list there are sometimes options for the original item & these are designated by the letter "A" following the part number, e.g. 06-0632A. Stainless parts are followed by the suffix "SS". Obsolete part numbers, where the description says "USE....", go to that new number for the price & use the new number when ordering. If you can't find the part you're after please enquire, we may still be able to help.

Triumph Part Number Conversion: Important information for pre 1973 machines - in 1973 Triumph introduced a numerical part numbering system which superseded the old alpha-numeric system. For these earlier models the following information will help to find the new number in our price list. Prefix letters have been converted to numeric prefixes, as shown in the table opposite. We use a plain dash - to seperate part number fields. If you are having no result with the search engine, try using just the last four numbers (max) or just the numbers after an alphabetic character.

Alpha-numeric converts to Numeric Example
Dxxxx converts to 60-xxxx D4250 to 60-4250
Exxxx converts to 70-xxxx E4576 to 70-4576
Exxxxx converts to 71-xxxx E12599 to 71-2599
Fxxxx converts to 82-xxxx F9356 to 82-9356
Fxxxxx converts to 83-xxxx F13245 to 83-3245
Hxxxx converts to 97-xxxx H2091 to 97-2091
Sxxxx converts to 21-xxxx S413 to 21-0413
Txxxx converts to 57-xxxx T1435 to 57-1435
Wxxxx converts to 37-xxxx W354 to 37-0354

Norton Part Numbers: The pre-Commando part number system can be tricky & it may be best to use the alphabetical section of the price list. Most Commando parts begin with either 06-XXXX or 04-XXXX & are then followed by a further 4 digits, e.g. 06-3371.We use a plain dash - to seperate part number fields. If you are having no result with the search engine, try using just the last four numbers (max) or just the numbers after an alphabetic character.

BSA Part Numbers: From the mid sixties onwards BSA adopted a standard numbering sequence which follows the pattern of 2 digits, a dash, then followed by a further 4 digits, e.g. 71-2790. Prior to this BSA used two other part number formats, the early system used less than six digits & requires zero's to added. The later system then preceded the original number with additional codes. With these numbers only the last six digits are used. We use a plain dash - to seperate part number fields. If you are having no result with the search engine, try using just the last four numbers (max) or just the numbers after an alphabetic character.

Numbers using LESS than 6 digits: 2-2582 becomes 02-2582, 15-152 becomes 15-0152, 2-79 becomes 02-0079
Numbers using MORE than 6 digits: 11642-2631 becomes 42-2631

Fortunately these problems don't exist in too many of the BSA books, but if you can't figure it out let us know; remember too that just when BSA got it all sorted out they went broke!