I don’t own a Tesla and never will for obvious reasons, but I’m curious: are all the parts on a Tesla car Tesla-specific?

Or said another way: can you buy a Ford alternator, Volkswagen door latch mechanisms, Toyota shock absorbers, or Brembo brake pads to service a Tesla car?

Most car brands made by the same large manufacturer share a lot of parts, so you’re never really stuck even if one of the brands disappears. And small independent car makers usually shop around for OEM parts from other manufacturers to keep costs low. But Tesla is neither of those things, so I’m wondering if they decided to make all their parts custom so you have to buy spares from them.

It doesn’t affect me, but if I owned a pre-Sieg-Heil Tesla, seeing as though people boycott the brand around the world, I’d be worried to be left SOL if the company tanks or pulls out of my country. Particularly since they don’t seem to be exactly falling over themselves to design for repairability.