on the passenger side there are two lines that have to do with the transmission cooler, one large fitting for water for the block, and above them all a roughly 1'' hole with the remains of a grommet.
What is the name of the plug and grommet that go there please? Is it a replaceable part?

 

I always use a couple of cable ties, and loop them through the radiator core, to keep that plug (or switch if equipped) from coming out as easily. Grommet is a 1378869, plug is a 1274052

 

Thank you very much. Lawrence.