This replacement engine coolant thermostat housing is designed for direct fitment on Durango (2011-2015) and Cherokee JK (2011-2019).It replaces multiple OEM part numbers including 5184651AH, 05184651AG, 5184651AG, 5184655AD, 823-203, TI23695, 823203, and TI23695-E.The housing supports proper coolant circulation to help maintain consistent engine temperature and reduce the risk of overheating under normal driving conditions.Built with standard dimensions matching mounting points, it installs without modifications.The material is rated for continuous use at temperatures up to 105°C.This part may be used to replace worn or malfunctioning thermostat housings and is compatible with vehicles exhibiting cooling system concerns such as P0128 error codes.