[Razorback1980]

I think he was asking about "new" parts. Ok, so actually I have no idea but I'm guessing that the companies that produced the original parts already have the tooling set up to keep producing them, so they continue until it's no longer profitable but it's usually on an as needed schedule. That's why you see things like "climate control" parts that are no longer available but other items that need constant replacement like DME relays are readily available. Some parts just don't sell enough to maintain production and are in jeopardy of being very hard to get soon.