I looked up a couple currently sold Lenovo laptops and there aren't parts available according to browsing to the model in the Support section and clicking the Parts icon.
Why do you need original parts when there are millions of options. If there is no Lenovo RAM I'd buy crucial ram or Samsung ram. If there's no ssd I'd buy an Intel ssd or whatever else. For a display replacement of course you won't be able to do it on your own and anyways it's not a phone and displays rarely break in laptops so Lenovo center will do it for you if you can't find any displays.
I'm replying to the parent comment that stated that "RAM, SSD, wifi card. Swap in a new speaker, display, hinge, keyboard, touchpad, webcam, fingerprint reader, antenna, headphone jack" were something they can get for every Lenovo they've ever owned. RAM, SSD and WiFi are easy in just about every laptop outside of Macbooks, but touchpads, display hinges, webcams, speakers and mounts, etc are definitely unusual and not something you can easily get from Lenovo.
Displays definitely break in laptops. I replaced one in an old Acer after it cracked in a backback under a seat on a plane. It took some work to find compatible ones and some details on the disassembly. The little plastic clips that often break made it fussy and annoying. Compare that to framework which has a magnetic bezel around the display and easy disassembly, sells the panel directly, and makes available a guide for something that will only take you 5 to 15 minutes: https://guides.frame.work/Guide/Display+Replacement+Guide/86...
