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 2.4L L4 Vehicles:
2019-2020 Santa Fe
2017-2018 Santa Fe Sport
2015-2019 Sonata
2018-2021 Tucson

Compatible with Kia 2.4L L4 Vehicles:
2016-2020 Optima
2016-2020 Sorento
2017-2022 Sportage

Replaces Part #: 25500-2GGA0, 255002GGA0 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.