Dorman 599-5405 Door Control Module Assembly

This door control module is engineered to match the fit and function of the original equipment module on specified Kenworth heavy duty truck applications. It manages power window operation, central door locking, and exterior mirror adjustment for the driver side front door. The unit is designed to withstand high temperature and vibration environments typical of Class 7 and 8 commercial vehicle duty cycles. The assembly features a thermoplastic housing with integrated circuit board and vehicle-specific connector interface. It serves as a direct replacement for Kenworth OEM part numbers 50561AA and Q21-1050. Quality validated for reliable performance and durability in aftermarket service applications.