Def. Supersede: to take the place of; or replace.
Here at ktm-parts.com this means that the product you are looking for has been replaced or updated, by KTM, with a newer product. Any Superseded product that you find in our database will be followed by another Product Number, this product number is the new product number that the old product has been superseded to.
Another way products can be Superseded is by multiple other product numbers. This happens when an assembly is no longer sold as a full unit, and is updated and sold as individual parts. If this happens the product you are looking for will be named Superseded by Multiple. In this case there will be a list of product numbers that this product is superseded to in the description section of the product view.
Here is an example: 59036020044 is Superseded by Multiple
If you need any additional help with superseded parts, please email firstname.lastname@example.org