So I am having an issue finding the correct fuel pump also. The one on the right is the OEM one from the car. The blue one is the Delphi aftermarket part, as you can tell the nozzle on the Delphi is much longer and would not fit in the plastic housing in place of the old one, I returned that one and got what seemed to be a smaller pump made by Import Direct and that one was also longer than the OEM one. So I have ordered the VIN matching OEM pump from Lexus and hopefully it matches up.