Alain,

Generally a letter after a part number is the way Volkswagen used to
identify a part that has been updated in some manner. In other words part
number 123 456 789 "A" is earlier than 123 456 789 "B", all other things
being the same. So your part number 025 906 302 "A" was made after 025 906
302, with a change, addition, or improvement to 025 906 302.

Most manufactures break down their part numbers for ID purposes. In
Volkswagen/Audi"s case, the first three numbers indicate the model "025"
Vanagon...."906" an electrical system part,.... the third numbers are the
part id number, and a letter indicating a later version of the part, as I
said.  A Bug part number for example would start with "111" for a standard
Type I, and "113" for a Super Beetle, A Karrman Ghia is a "115", etc, and so
on. In the case of say in interior part, or a part where it is colored, the
part number is followed by the color code, 123 456 789 OTC  for "black" as
an example. A good Volkswagen parts man can read the part number and tell
almost everything about it.

Howard

>From: "Alain Thibault" <alainthibault@TELUS.NET>
>Sent: Friday, November 01, 2013 12:12 AM
>Subject: [VANAGON] Vanagon-Syndrome-Air-Flow-Meter-fix

>Sorry to come back with this again, but could someone tells me if there is
>a
>difference between harness 025 906 302 and harness 025 906 302 A ...
>Thanks
>Alain
>Westy 1986