Dealership or OEM online parts store?

Hello,

The dealership told me the valve body in transmission is shot. Their price is $1800 for the part and I was told its on back order all over America. I found the part on sites like getOEMparts.om, nissanpartsdealom etc.

Have any of you guys bought from any of these "Genuine OEM part stores"
Are they for real? Still offering the NISSAN OEM warranty and not void the warranty on the repair?

Thanks for your feedback!

Any suggestions to a good Nissan parts site?