The part you are looking for is not available separately, please refer to page# 51 from the Service Manual to know more.
I'd suggest you Contact HP in your region regarding the service options for your computer.
If you are having trouble navigating through the above options, it's most likely because the device is out of warranty. If yes? please send me a private message with the region you are contacting us from. Check next to your profile Name, you should see a little blue envelope, please click on it.
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