These are new Delphi Injectors, new tip washer and 2 return line o-rings included. We run these in our own trucks and they are great injectors. Also recommend return line kit, and a new raycor fuel filter when replacing.
Note: Torque injector to 47 Nm (35 ft-lb).
alternate for part numbers 780430, 29455, 30406, 1813345C91, 1816605C91, 1819656C91.