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 5.6L V8 Vehicles:
2005-2015 Armada
2012-2017 NV2500
2012-2017 NV3500
2008-2012 Pathfinder
2004 Pathfinder Armada
2004-2015 Titan

Compatible with Infiniti 4.5L 5.0L 5.6L V8 Vehicles:
2003-2008 FX45
2009-2013 FX50
2003-2004, 2006-2010 M45
2011-2013 M56
2002-2006 Q45
2014-2019 Q70
2015-2019 Q70L
2004-2010, 2012-2013 QX56
2014 QX70
2014-2016 QX80

Compatible with Mitsubishi Vehicles:
1995, 1997 Diamante
2003-2011 Eclipse
2007-2009 Galant
1995-1997, 2003-2006 Montero
1997-1998 Montero Sport
2007-2020 Outlander 3.0L

Replaces Part #: THM-011, THM011, MD174233 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.