Genuine OEM Mercedes-Benz Heater Electrical Wiring Harness, part number A0008201403. This wiring harness provides the necessary electrical connections for the vehicle's heater system, ensuring proper operation of fans, sensors, and control modules. It is part of the heating and air conditioning assembly. Constructed with high-quality materials for durability and resistance to heat and vibration. Genuine OEM parts are essential for heater wiring harnesses to guarantee correct wire gauge, insulation, and connector compatibility for safe and efficient climate control.