Anyone know what part # this is, or what it's called for that matter. For the life of me I can't remember what they call it, weather strip liner? Either way it's on my driver's side and I just noticed it a few months ago and forgot about it, figured I should replace the thing.

 

I imagine it's fairly easy to replace as well. I think I recall seeing one taken off by just pretty much pulling and there are holes throughout the frame where they fit in.

 

weatherstripping