Naruto Chapter 446

[Pandadice]

well it is possible to use bloodline limits through stealing someone's body part. just look at Kakashi.

[Abdula]

Yeah but that Bloodline limit was specific to the eye, and he got the eye after it was already activated, plus we all see the strain it puts on his body. Something like taking someone's eye is completely different from say Kakuzu stealing Hashirama's heart and then suddenly being able to use Mokuton or taking the heart of someone from the Kaguya clan and suddenly being able to manipulate his bones the way their bloodline limit allows them to.

Besides from all that was said it seems like the sharingan is a very unique bloodline limit, more so than most, and the eyes were meant to be transplanted in the first place.