Thermostat - E46 M3, MZ3 S54, Z4 M
- Mfg Part #
- Turner Part #
GENUINE BMW THERMOSTAT - E46 M3, MZ3 (S54), MZ4. This is just the thermostat itself and does not include the housing o-ring or any others that are advised for replacement. See thermostat kit or our water pump kit for a complete package.