Installation of Thermostat

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

Installation is in the reverse order of removal.

Install the thermostat with the flange securely inside the rubber ring as shown below.
Install the thermostat with the jiggle valve facing upwards.

Fig 1: Identifying Thermostat, Housing, Jiggle Valve And Rubber Ring
Courtesy of NISSAN NORTH AMERICA, INC.