ENGINE CODES N52

N54

N55

MISHIMOTO ACTIVATION TEMPERATURE (F) 165

NOTE Vehicle must be equipped with stock plastic thermostat housing in order to install this thermostat. If the car still has a metal thermostat housing, BMW 11537549476 or BMW 11537601158 must be purchased in order to install thermostat.

The metal pin must be carefully removed from the Mishimoto thermostat with pliers before installed into plastic thermostat housing.