1、Fitment: Our heater control valve is perfect replacement for X5 3.0I SPORT UTILITY 4‑DOOR 2001‑2006; Replacement for X5 3.0SI SPORT UTILITY 4‑DOOR 2007‑2009; Replacement for X5 4.4I FORMULA 1 SPORT UTILITY 4‑DOOR 2003‑2006; Replacement for X5 4.4I SPORT UTILITY 4‑DOOR 2000‑2006. 2、OEMr: Heater control valve replace part number is 64116910544 for reference. Please check the part numbers whether it suits your vehicle before purchasing. 3、Function: The heater water valve is the heater switch for the car heater. When the water valve is open, circulating water from the engine enters the radiator in the heater and a fan blows heat into the cab. 4、Reliable Performance: The car heater control valve is made of solid and stable material, not easy to break, wear resistant, durable and long service life. 5、Ideal Replacement: According to the original car design, perfect replacement of the old or damaged part, no need to modify, easy and fast installation.