Heater Motor Resistor – DA4178RESISTOR

Thomas Performance Ltd Verified independent store

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The heater motor resistor controls the blower fan speed by varying electrical resistance across the motor circuit, enabling the driver to select different airflow levels through th e cabin heating and ventilation system. A failed resistor typically results in the blower fan operating only on the highest speed setting, or failing to operate on certain speed positions entirely. Replacing the resistor with a correctly rated unit restores full multi-speed functionality to the heater system. Key Features Directly replaces the original resistor pack, restoring all fan speed settings Designed to match the original electrical resistance values and connector configuration Supplied as a single unit to OEM specification for direct fitment When replacing the resistor, inspect the blower motor and wiring connector for heat damage, as a failing motor can cause resistor burnout Vehicle Fitment Please refer to the product title and check compatibility with your specific Land Rover model, model year, and engine variant before ordering. Not sure about fitment? Feel free to get in touch at [email protected] Show more