AISIN OE matched engine coolant thermostats are designed for efficient, consistent performance With superior OE technology and know-how, AISIN ensures that every thermostat provides perfect OE form, fit, and function Manufactured using only the highest quality materials for long life and dependable cooling system performance All AISIN thermostats feature the correct OE specified operating temperature Thermostat housing included Compatible with select vehicles (engine may affect fitment - verify specific fitment details with fit checker above): INFINITI: 2011-12 EX35, 2013 EX37, 2011-12 FX35, 2013 FX37, 2011-12 G25, 2009-13 G37, 1996-01 I30, 2012-13 M35h, 2011-13 M37 Compatible with (continued): INFINITI: 2015 Q40, 2014-18 Q50, 2014-15 Q60, 2014-18 Q70, 2015-19 Q70L, 2014-17 QX50, 2014-17 QX60, 2014-17 QX70; NISSAN: 2009-20 370Z, 1995-01 Maxima