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Your cart is empty.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 Chrysler 5.7L 6.1L 6.2L 6.4L Hemi Vehicles: 2005-2023 Chrysler 300 2007-2009 Aspen Compatible with Dodge 5.7L 6.1L 6.2L 6.4L Hemi Vehicles: 2008-2023 Challenger 2006-2023 Charger 2004-2009, 2011-2021 Durango 2005-2008 Magnum 2003-2010 Dodge Ram 1500 2003-2010 Dodge Ram 2500 2003-2009 Dodge Ram 3500 2005-2009 Dodge Ram 4000 Compatible with Jeep 5.7L 6.1L 6.2L 6.4L Hemi Vehicles: 2006-2010 Commander 2005-2023 Grand Cherokee 2021-2023 Grand Cherokee L 2022-2023 Grand Wagoneer 2022-2023 Wagoneer 2021-2022 Wrangler Compatible with Ram 5.7L 6.1L 6.2L 6.4L Hemi Vehicles: 2011-2023 Ram 1500 2019-2022 Ram 1500 Classic 2011-2018 Ram 2500 2011-2018 Ram 3500 2014-2017 Ram 4000 Replaces Part #: 52028898AE 203℉ 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.