WARNING: This page is about a different car, the 2006 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
Installation is in the reverse order of removal.
NOTE:
Install the inner rotor and outer rotor with the punched marks on the oil pump cover side.
Fig 1: Installing Inner Rotor And Outer Rotor With Punched Marks On Oil Pump Cover Side