Is there a way to modify a specific dimension of a part within an assembly without modifying the part itself?

I.e. I have a part file for a pipe with various configurations for the pipe's ID/OD however a pipe is just an extrusion with can be cut to length.  Is it possible to specify a length parameter within the part representing the extrusion length in order to be able to insert a large number of these components into an assembly, specify the desired configuration, and then specify the length parameter which will be different for each inserted components.

I'd like to do this to reduce the number of configurations within the part to only represent the ID/OD and NOT length, as well as reduce the number of overall part files for the assembly.  One solution is to use the weldment feature and save each length as a new part but that defeats the purpose.