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 Hyundai Vehicles:
1995-1997, 2001-2011 Accent
1996-2012 Elantra
2010-2012 Santa Fe
2013-2016 Santa Fe Sport
2009-2014 Sonata
1997-2008 Tiburon
2005-2015 Tucson

Compatible with Kia Vehicles:
2010-2013 Forte
2010-2013 Forte Koup
2009-2015 Optima
2006-2011 Rio
2006-2011 Rio5
2009-2010 Rondo
2011-2015 Sorento
2010-2011 Soul
2004-2009 Spectra
2005-2009 Spectra5
2005-2016 Sportage

Replaces Part #: 25500-23010, 2550023010 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.