Mishimoto's direct-fit replacement thermostat for BMW M52, M54, and M56 engines is supplied pre-installed in an OEM-quality housing to restore stock-temperature cooling performance. Opening at the factory temperature, it replaces a failed stock thermostat and fits many BMW chassis including E46, E39, and E85. Like other Mishimoto cooling products, it is covered by the Mishimoto Lifetime Warranty.
Mishimoto BMW M52/M54/M56 Direct Fit Replacement Thermostat w/Housing - 97 Deg. C