An engine's thermostat regulates the temperature of the engine by controlling coolant flow, its job is to block the flow of coolant to the radiator until the engine has warmed up.
Symptoms of a bad or failing thermostat: high temperature reading and engine overheating; low temperature reading and underheated engine; temperature changing erratically; coolant leaks around thermostat housing or under vehicle.
NOTE: If the thermostat has a jiggle pin, check valve, or other feature to assist in bleeding air from the system in a vertical installation, the jiggle pin should be located at the north or 12 o'clock location.

Compatible with Nissan 2.5L L4 Vehicles:
2002-2018 Altima
2005-2019 Frontier
2016 Murano
2014-2015 Pathfinder
2008-2020 Rogue
2014-2015 Rogue Select
2002-2012 Sentra

NOTE: Altima have TWO thermostats! This one is for the lower end of the block.

Compatible with Infiniti 2.5L L4 Vehicles:
2001-2002 G20
2014-2017 QX60

Replaces Part #: 21200-EA000, 21200EA000 thermostat with gasket.

NOTE: This is NOT a genuine part, it's a aftermarket replacement part manufactured by Allmotorparts.

NOTE: To ensure accurate fitment, please confirm your vehicle information in the above compatibility section and the description.