Hi folks! I'm trying to find a component that I'm not familiar with.

See the attached photo. I'm looking for the piece that the yellow cable is wired into. It slides over four pins on the board to make a connection. The little white plastic piece is loose, so the connection is breaking. I just need to replace that one tiny piece, but I'm unfamiliar with what it's called or where to find them. Any help would be greatly appreciated. Thanks!