PART NUMBERS
Whenever possible please order by current part number and description. This greatly speeds the processing of your order and reduces the chance of you receiving the wrong part. The key word here is "current". Over the years British motorcycle manufactures revised their part numbering system, but never produced parts books for the earlier model incorporating the new numbers. Information on converting to new numbers is listed below.
AMAL
You can order Amal spares either by the number and description shown in the parts book for your model or, if for
a Concentric MK1 or MK2 carburetor, by using the simplified numbers shown on the exploded views located earlier in the catalog.
BSA
BSA changed to system where most part numbers are composed of two digits, a dash then four digits, though a few have a slash mark and
one to three additional digits following the first six. To convert from old to new system simply insert zeros to fill in the missing digits.
Note - only the last two digits before the dash are the start of the part number, some early parts book preceded the part number with a
price code which must be ignored.
| 2-123 becomes 02-0123 | 40-45 becomes 40-0045 | |
| 67-678 becomes 65-0678 | 97-789/77 becomes 97-0789/77 |
CLUBMAN RACING
We use the manufactures numbers when they supply a large number of parts, as would Norton and Triumph. Other parts, such as rear-sets,
fairings, etc. are currently assigned a number consisting of a single alpha character followed by three numeric ones. While not guaranteed,
the alpha character can often be used as a guide to the model or usage of the part - A is Norton Dommie/Atlas, C is Commando, D is Ducati,
E is electrical, etc.
NORTON
Early Norton part numbers could be listed as 26076, R25830, NM16317, E9731, NMT1048 and several other variations. Most numbers today are six
digits long, usually broken into a group of two and a group of four such as 06-0100. The front group "06" is the most often used but 00 through
04, along with 12, 14, and 99 are also common. The only way to update old numbers to new ones is by use of the "Supersession and Amended Part
Number List." This is available by ordering part number 00-5753.
A number of older parts have been discontinued but often a later version can be used in their place. These parts are a direct replacement and
while functionally the same, something has been changed (new material, different heat treating, etc.) which has dictated that a new part number
be assigned. Because of this, invoices may show part numbers different from the one you ordered.
STAINLESS STEEL PARTS
The alpha characters at the beginning of the part number indicate usage. Both Norton and Triumph lists include an explanation how the code works.
TRIUMPH
In 1973 Triumph converted from an alpha-numeric numbering system to a numerical one. With the exception of the numbers S1-30 through S70-7,
which became 60-0000 numbers, and a few others, most part numbers are converted as shown below:
| D1234 | (4 digits) | becomes 60-1234 | H5678 | (4 digits) | becomes 97-5678 | ||||
| E2345 | (4 digits) | becomes 70-2345 | S6789 | (4 digits) | becomes 21-6789 | ||||
| E13456 | (5 digits) | becomes 71-3456 | T7890 | (4 digits) | becomes 57-7890 | ||||
| F4567 | (4 digits) | becomes 82-4567 | W8901 | (4 digits) | becomes 37-8901 | ||||
| F14567 | (5 digits) | becomes 83-4567 |
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