Blower Motor Resistor for 1980-1989 Ford F-150 & More - Standard Ignition RU-439

Help your heater and A/C fan step through its speed settings with the Standard Ignition RU-439 Blower Motor Resistor, which controls the current reaching the blower motor to provide its variable fan speeds. It is a direct-fit replacement listed for many models from one make, Ford, among them the 1980-1989 Ford F-150, 1980-1986 Ford F-250 and 1980-1986 Ford Bronco. See the "Vehicles it fits" section for the full list.

• Premium copper electrical connectors: Copper connectors are used for more precise resistance values, which improves resistor performance and supports a longer part life.
• Kanthal D resistor wire: Gives greater flexibility, durability and tensile strength to the wiring attached to higher-watt resistors.
• Built for Ford HVAC systems: Standard's research and design process targets seamless integration with the vehicle's HVAC system, and the unit is specifically designed for Ford applications.
• Tested at Standard's facility: Undergoes extensive testing there to confirm correct performance across operating conditions.

A failing resistor can leave the blower working on some speeds and dead on others. If a failed resistor is behind that problem, this replacement is designed to restore variable speed control of the A/C and heater blower motor, helping HVAC performance and passenger comfort.

Interchange: RU1132 · JA1518 · BR342 · E3TZ19A706B