1、Vehicle Fitment: Fit for 3 Series E36; Fit for 3 Series E46; Fit for 5 Series E39; Fit for X5 E53. Please confirm whether your model is applicable before buying. 2、OE Numbers: 64116929540, 6923204, 6929540, 64116923204, 64118362931, 64118376174, 64118380580, 8362931, 8376174, 8380580 are the reference part numbers. 3、High Efficiency: This heater blower motor resistor can effectively improve the car's operational efficiency, maintaining optimal performance in any situation. 4、Designed for Durability: The blower motor control module boasts a sturdy construction that ensures its longevity. It is resistant to heat and abrasion. 5、Easy Installation: The heater blower motor resistor is designed for a straightforward installation. You can set it up quickly and without any complicated tools.