M20 Coolant Sensor (Brown Top)

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Needing to replace your coolant temperature sensor on your M20 engine? This is the one. This sensor, also known as the brown top sensor, reads the coolant engine temperature and se nds it to your gauge in the car. This sensor replaces BMW PN 12621710512 or 12621710511 *Note: We only use FAE brand, which is what BMW uses. Includes new gasket Fitment: E30, E28, E30 M3 (Please verify PN before ordering) Show more